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# Statistics for Management_ 4 Mark

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Statistics for Management

Unit1 - 4 Mark Quiz Questions

1.A study was conducted to find the usefulness of mobiles for auto-rickshaw drivers. About 600 auto-

rickshaw drivers residing in different localities were contacted over their mobile. The increase in their

income was noted down i. The method adopted for collection of information is

a. Oral interview

b. Direct Method

c. Telephonic conversation

d. Schedules

2.A study was conducted to find the usefulness of mobiles for auto-rickshaw drivers. About 600 auto-

rickshaw drivers residing in different localities were contacted over their mobile. The increase in their

income was noted down ii. The result of the study will be more efficient if the sampling method

a. Quota

b. Stratified

c. Systematic

d. Cluster

3.A study was conducted to find the usefulness of mobiles for auto-rickshaw drivers. About 600 auto-

rickshaw drivers residing in different localities were contacted over their mobile. The increase in their

income was noted down iii. The observation made is

a. Judgment

b. Discrete variable

c. Quantitative

d. Qualitative

4.A study was conducted to find the usefulness of mobiles for auto-rickshaw drivers. About 600 auto-

rickshaw drivers residing in different localities were contacted over their mobile. The increase in their

income was noted down iv. The final results should be presented in terms of

a. Percentage increase

b. Income after mobile usage

c. Increase in income

d. Difference between incomes

5.An advertising agency mailed 100 questionnaires to the viewers to know the impact level of the

advertisement. It received only one questionnaire back. i. It is not possible to apply statistics because

a. It does not deal with single result

b. The answer replied is not clear

c. It does not deal with qualitative data

d. It is not confidential

6.An advertising agency mailed 100 questionnaires to the viewers to know the impact level of the

advertisement. It received only one questionnaire back. ii. The method adopted to collect information

is

a. Schedule

b. Telephonic interview

c. Mailed questionnaire

d. Oral interview

7.An advertising agency mailed 100 questionnaires to the viewers to know the impact level of the

a. Census method

b. Complete enumeration

c. Collection of data from secondary source

d. Sampling method 8.An advertising agency mailed 100 questionnaires to the viewers to know the impact level of the

advertisement. It received only one questionnaire back. iv. The main disadvantage of questionnaire is

a. Confidential questions

b. Uneducated respondents

c. Superfluous questions

d. Unnecessary questions

9.In order to determine the number of dumb schools, the local Government decides to conduct a

survey i. The Survey must be on

a. Randomly selected individuals

b. Specified localities

c. All local people

d. House holds

10.In order to determine the number of dumb schools, the local Government decides to conduct a

survey ii. The observations of units is

a. Discrete

b. Qualitative

c. Quantitative

d. Variable

11.In order to determine the number of dumb schools, the local Government decides to conduct a

survey iii. The observation made on ii) is

a. By applying statistical methods

b. Used for mathematical methods

c. First treated with attributes

d. Useless for statistical methods

12.In order to determine the number of dumb schools, the local Government decides to conduct a

survey iv. A useful measure that can be derived from observation is

a. Percentage blindness

b. Number of local people

c. Number of Blind people per 1000

d. Number of blind people

Unit2 - 4 Mark Quiz Questions

1.A hospital wants to start some new department for treating patients. Since the cost will be high they

decide to estimate the return. i. The most appropriate units of observation will be .

a. The return received by other hospitals having same department

b. Doctors of all hospitals

c. Patients

d. Each number of the locality

2.A hospital wants to start some new department for treating patients. Since the cost will be high they

decide to estimate the return. ii. The data is collected by

a. Indirect oral interview

b. Direct personal observation

c. Primary source

d. Secondary source

3.A hospital wants to start some new department for treating patients. Since the cost will be high they

decide to estimate the return. iii. Unit of measurement will be

a. Percentage net return

b. Break-even point

c. Net Return

d. Total Return

4.A hospital wants to start some new department for treating patients. Since the cost will be high they

decide to estimate the return. iv. Another useful added information for the purpose of investigation is

a. Number of Beds available in the hospital

b. Percentage of patients wanting such new department

c. Percentage of patients living in the locality

d. Number of Doctors in the locality

5.A person is hired by a five star hotel to study the possibility of improving the returns through

customer's satisfaction. The person appointed for this purpose collects data from the customers with

respect to the quality of food and service, satisfaction and price aspects. i. The Hotel management

collects data by

a. Indirect oral interview

b. Through agent

c. Direct observation

d. Through questionnaire

6.A person is hired by a five star hotel to study the possibility of improving the returns through

customer's satisfaction. The person appointed for this purpose collects data from the customers with

respect to the quality of food and service, satisfaction and price aspects. ii. Two of the information

collected belong to intangible cadre. They are

a. Price and satisfaction

b. Service and price

c. Quality of food and service

d. Quality of food and price

7.A person is hired by a five star hotel to study the possibility of improving the returns through

customer's satisfaction. The person appointed for this purpose collects data from the customers with

respect to the quality of food and service, satisfaction and price aspects. iii. The information will help

the management

a. To decrease price

b. To increase service level

c. To reorganize and improve in all respects

d. To increase satisfaction level

8.A person is hired by a five star hotel to study the possibility of improving the returns through

customer's satisfaction. The person appointed for this purpose collects data from the customers with

respect to the quality of food and service, satisfaction and price aspects. iv. Service level can be

improved by

a. Recruiting new set of people

b. Giving proper training

c. Recalling its old staff

d. Providing proper environment to customers

9.Suppose the State Government wishes to find the average yield of wheat per acre then i. As first

step, it should get information on

a. Total number of acre and yield available in the state

b. Total number of days that will be use for the purpose

c. Total number of labourers used for the purpose

d. Total number of acre available in the state

10.Suppose the State Government wishes to find the average yield of wheat per acre then ii. The data

for (i) can be obtained from

a. Secondary source

b. Census record

c. Sample

d. Pilot survey

11.Suppose the State Government wishes to find the average yield of wheat per acre then iii. The

scope of the investigation is

.

a. Land used for agricultural purpose

b. Land used for Buildings

c. Land available in State

d. Land used for wheat production

Unit3 - 4 Mark Quiz Questions

1.Study the following table to answer sub questions (i) to (iv)

Component Establishment

cost

Prize

amount

Agents

commission

Profit

Amount (Rs’000) 10 25 20 45

Agent’s percentage commission on establishment cost is

a. 100

b. 250

c. 200

d. 180

Submit

2.There are 200 employees in a firm. 81 of them are Male and the rest Female. 12 of them are Doctorates

53 of them are Graduates and the rest Post graduates. Education level of females are as follows: 8

doctorates 89 Post graduates and the rest graduates

In tabular form it is

a. Table

Education level Male Female Total

Doctorates 4 8 12

P.G 31 22 135

Graduates 46 89 53

81 119 200

b. Table

Education level Male Female Total

Doctorates 4 8 12

P.G 46 89 135

Graduates 31 22 53

81 119 200

c. Information insufficient

d. Table

Education level Male Female Total

Doctorates 4 8 12

P.G 56 84 140

Graduates 21 27 48

81 119 200

a. a

b. c

c. d

d. b

Submit

3.Populatin of a City

Religion YEAR

2003 2006

Men Women Total Men Women Total

Hindu 4 8 12

Muslim 31 22 135

Christian 46 89 53

81 119 200

It is possible to infer

.

a. Percentage increase in Hindu population

b. Not possible to infer

c. Percentage decrease in Hindu population

d. Percentage increase / decrease in Hindu population

Submit

5.There are 200 employees in a firm. 81 of them are Male and the rest Female. 12 of them are Doctorates

53 of them are Graduates and the rest Post graduates. Education level of females are as follows: 8

doctorates 89 Post graduates and the rest graduates

abulation

a. Do not bring out trends

b. Make comparisons easier

c. Brings out layout nicely

d. Brings out figures clearly

Submit

6.There are 200 employees in a firm. 81 of them are Male and the rest Female. 12 of them are Doctorates

53 of them are Graduates and the rest Post graduates. Education level of females are as follows: 8

doctorates 89 Post graduates and the rest graduates

i. he above form of describing a situation is known as

a. Text form

b. Tabulation

c. Classification

d. Quantitative form

Submit

7.Population of a City

Religion YEAR

2003 2006

Men Women Total Men Women Total

Hindu 4 8 12

Muslim 31 22 135

Unit4 - 4 Mark Quiz Questions 1.A company finds that the efficiency of 60 non-graduates to be 70%, 80 graduates to be 75% and 30 post

graduates to be 85% i. The method used to find overall efficiency is

a. Harmonic mean

b. Arithmetic mean

c. Combined average

d. Geometric mean

Submit

2.A company finds that the efficiency of 60 non-graduates to be 70%, 80 graduates to be 75% and 30 post

graduates to be 85% ii. The average efficiency of non graduates and graduates is

a. 70%

b. 80%

c. 72.86%

d. 76%

Submit

3.A company finds that the efficiency of 60 non-graduates to be 70%, 80 graduates to be 75% and 30 post

graduates to be 85% iii. The average efficiency of graduates and post graduates is

a. 76.82%

b. 75.91%

c. 78.02%

d. 77.73%

Submit

4.A company finds that the efficiency of 60 non-graduates to be 70%, 80 graduates to be 75% and 30 post

graduates to be 85% iv. The overall efficiency is

a. 75%

b. 76%

c. 77%

d. 78%

Submit

5.Mr. Anil goes to a supermarket. He purchases 8 pieces of item A @ Rs.5/- each, 12 pieces of item B @

Rs.10/- each, 15 pieces of item C @ Rs.20/- each, 10 pieces of item D @ Rs.15/- each and 6 pieces of item

E @ Rs.12/- each.

Form a frequency distribution

a. d

b. b

c. c

d. a

Submit

6.Mr. Anil goes to a supermarket. He purchases 8 pieces of item A @ Rs.5/- each, 12 pieces of item B @

Rs.10/- each, 15 pieces of item C @ Rs.20/- each, 10 pieces of item D @ Rs.15/- each and 6 pieces of item

E @ Rs.12/- each.

It is a ……………. Distribution

a. Discrete

b. Cumulative

c. Continuous

d. Relative

Submit

7.Mr. Anil goes to a supermarket. He purchases 8 pieces of item A @ Rs.5/- each, 12 pieces of item B @

Rs.10/- each, 15 pieces of item C @ Rs.20/- each, 10 pieces of item D @ Rs.15/- each and 6 pieces of item

E @ Rs.12/- each.

The average price per piece is

a. 13.88

b. 14.88

c. 13.37

d. 12.05

Submit

8.Mr. Anil goes to a supermarket. He purchases 8 pieces of item A @ Rs.5/- each, 12 pieces of item B @

Rs.10/- each, 15 pieces of item C @ Rs.20/- each, 10 pieces of item D @ Rs.15/- each and 6 pieces of item

E @ Rs.12/- each.

The total amount spend by him is

a. 600

b. 750

c. 682

d. 650

Submit

9.Wage distribution of workers having mean as 23.57 is as follows ii. The total number of workers is

a. 76

b. 72

c. 70

d. 80

Submit

10.Wage distribution of workers having mean as 23.57 is as follows iii. Percentage of workers drawing less

than Rs.20 per day is

a. 21.42

b. 21

c. 22

d. 20

Submit

11.Wage distribution of workers having mean as 23.57 is as follows iv. The modal value of the distribution

is

a. 20

b. 30

c. 25

d. 15

Submit

12.Wage distribution of workers having mean as 23.57 is as follows Wage / day Rs. 10 15 20 25 30 40 No.

of workers 5 10 - 20 15 5 i. The missing frequency is

. a. 14

b. 16

c. 17

d. 15

Submit

Unit5 - 4 Mark Quiz Questions

1.A box has 100 tickets with numbers from 1 to 100 one ticket is drawn at random from the box. i. The

probability that the number drawn is divisible by 24 is

a. 0.04

b. 0.03

c. 0.02

d. 0.05

2.A box has 100 tickets with numbers from 1 to 100 one ticket is drawn at random from the box. ii. The

probability that the number is divisible by 15 or 30 is

a. 0.03

b. 0.07

c. 0.08

d. 0.06

Submit

3.A box has 100 tickets with numbers from 1 to 100 one ticket is drawn at random from the box. iii. The

probability that the number drawn is divisible by 12 or 23 is

a. 0.20

b. 0.12

c. 0.18

d. 0.10

Submit

4.A box has 100 tickets with numbers from 1 to 100 one ticket is drawn at random from the box. iv. The

probability that it is divisible by - 25 is

a. 1

b. 0.05

c. 0.04

d. 0

Submit

5.A sales manager has ten salesmen working under him. He moves with them closely and know the strengths

and weakness of each. Under any new circumstances he knows that Rama, Ramu, Ranga and Rathan will

succeed in the ratio 2:3:4:6 i. The probability that Ramu will succeed is

a. 4 / 15

b. 2 / 15

c. 6 / 15

d. 3 / 15

Submit

6.A sales manager has ten salesmen working under him. He moves with them closely and know the strengths

and weakness of each. Under any new circumstances he knows that Rama, Ramu, Ranga and Rathan will

succeed in the ratio 2:3:4:6 ii. The probability that Rama and Rathan will succeed is

a. 25 / 225

b. 18 / 225

c. 4 / 75

d. 20 / 225

Submit

7.A sales manager has ten salesmen working under him. He moves with them closely and know the strengths

and weakness of each. Under any new circumstances he knows that Rama, Ramu, Ranga and Rathan will

succeed in the ratio 2:3:4:6 iii. The probability that Ramu or Ranga will succeed is

a. 6 / 15

b. 7 / 15

c. 10 / 15

d. 8 / 15

Submit

8.A sales manager has ten salesmen working under him. He moves with them closely and know the strengths

and weakness of each. Under any new circumstances he knows that Rama, Ramu, Ranga and Rathan will

succeed in the ratio 2:3:4:6 iv. The type of approach followed by sales manager is

a. Axiomatic

b. Statistical

c. Subjective

d. Classical

Submit

9.In a housing complex there are 51 apartments. All of them are occupied by individual families. Mr.X living in

that complex wishes to form a committee of 5 members by selecting head of the family. Since the idea came

from him every body agrees that he should be one member i. Population consists of

a. Family members of each household

b. Head of the family

c. The committee members

d. Number of apartments in the complex

Submit

10.In a housing complex there are 51 apartments. All of them are occupied by individual families. Mr.X living

in that complex wishes to form a committee of 5 members by selecting head of the family. Since the idea

came from him every body agrees that he should be one member ii. The population is a

a. 600 members

b. Finite population

c. 800 members

d. Infinite population

Submit

11.In a housing complex there are 51 apartments. All of them are occupied by individual families. Mr.X living

in that complex wishes to form a committee of 5 members by selecting head of the family. Since the idea

came from him every body agrees that he should be one member iii. The probability that a house hold head

will be selected is

a. 1 / 48

b. 1 / 51

c. 1 / 50

d. 1 / 45

Submit

12.In a housing complex there are 51 apartments. All of them are occupied by individual families. Mr.X living

in that complex wishes to form a committee of 5 members by selecting head of the family. Since the idea

came from him every body agrees that he should be one member iv. The probability that six members will be

selected is

a. 6 / 50

b. 0

c. 6 / 51

d. 6 / 45

Submit

13.The probability that Mr.Amar, Ashish and Mr.Astosh will become chairman of a company are 0.4, 0.3 and

0.3 respectively. The probability that they will introduce a new product I the market are 0.08, 0.10 and 0.15

respectively. i. The probability that Mr.Astosh has introduced the new product is

a. 0.51

b. 0.30

c. 0.32

d. 0.42

Submit

14.The probability that Mr.Amar, Ashish and Mr.Astosh will become chairman of a company are 0.4, 0.3 and

0.3 respectively. The probability that they will introduce a new product I the market are 0.08, 0.10 and 0.15

respectively. ii. The probability that either Mr.Amar or Mr.Ashish have introduced the new product is

a. 0.50

b. 0.42

c. 0.58

d. 0.62

Submit

15.The probability that Mr.Amar, Ashish and Mr.Astosh will become chairman of a company are 0.4, 0.3 and

0.3 respectively. The probability that they will introduce a new product I the market are 0.08, 0.10 and 0.15

respectively. iii. The probability that the new product has been introduced is

a. 0.112

b. 0.025

c. 0.124

d. 0.107

Submit

16.The probability that Mr.Amar, Ashish and Mr.Astosh will become chairman of a company are 0.4, 0.3 and

0.3 respectively. The probability that they will introduce a new product I the market are 0.08, 0.10 and 0.15

respectively. iv. The rule used in answering the above questions is

a. Multiplication

c. Conditional

d. Baye's

Submit

Unit6 - 4 Mark Quiz Questions

1."X" is a Poisson variate such that 2P(X = 0) = P(X = 1) then i. The mean of the distribution is

a. 2

b. 2.5

c. 1

d. 2.5

Submit

2."X" is a Poisson variate such that 2P(X = 0) = P(X = 1) then ii. P(X = 0) is

a. 0.145

b. 0.125

c. 0.135

d. 0.155

Submit

3."X" is a Poisson variate such that 2P(X = 0) = P(X = 1) then iii. P(X ? 1)

a. 0.865

b. 0.800

c. 0.905

d. 0.805

Submit

4."X" is a Poisson variate such that 2P(X = 0) = P(X = 1) then iv. P(1 ? x ? 3)

a. 0.70

b. 0.90

c. 0.75

d. 0.80

Submit

5.A company produces two products A and B. Out of 5 products of A one was found to be defective. Out of 6

products of B 2 were found to be defective i. Probability that exactly one will be defective in product B is

a. 0.263

b. 0.363

c. 0.223

d. 0.243

Submit

6.A company produces two products A and B. Out of 5 products of A one was found to be defective. Out of 6

products of B 2 were found to be defective ii. Probability that one of A and one of B will be defective is

a. 0.1077

b. 0.0981

c. 0.1211

d. 0.1002

Submit

7.A company produces two products A and B. Out of 5 products of A one was found to be defective. Out of 6

products of B 2 were found to be defective iii. Probability that either one of A or two of B will be defective

a. 0.8388

b. 0.8011

c. 0.7555

d. 0.7344

Submit

8.A company produces two products A and B. Out of 5 products of A one was found to be defective. Out of 6

products of B 2 were found to be defective iv. The event of either getting 2 defectives in A or one defect in B

are

a. Mutually exclusive

b. Dependent

c. Exhaustive

d. Equally likely

Submit

9.In a Binomial distribution p = 0.4 and n = 6 then i. P(x = 0) is

a. 0.78

b. 0.078

c. 0.008

d. 0.062

Submit

10.In a Binomial distribution p = 0.4 and n = 6 then ii. P(X >= 4) is

a. 0.007

b. 0.010

c. 0.008

d. 0.006

Submit

11.In a Binomial distribution p = 0.4 and n = 6 then iii. P(X ? 1) is

a. 0.1313

b. 0.1202

c. 0.1206

d. 0.1296

Submit

12.In a Binomial distribution p = 0.4 and n = 6 then iv. P(X = 3) is

a. 0.291

b. 0.029

c. 0.019

d. 0.009

Submit

13.The average closing of a savings banks account which is normally distributed was found to be 35 months

with a S.D of 5 months. Then i. The probability that SB A/c will be closed on or before 25 months is

a. 0.4332

b. 0.4653

c. 0.4772

d. 0.4750

Submit

14.The average closing of a savings banks account which is normally distributed was found to be 35 months

with a S.D of 5 months. Then ii. The probability that it will be alive between 30 and 40 months is

a. 0.6529

b. 0.6714

c. 0.6826

d. 0.7111

Submit

15.The average closing of a savings banks account which is normally distributed was found to be 35 months

with a S.D of 5 months. Then iii. The probability that it will be alive after 42.5 months is

a. 0.0668

b. 0.0701

c. 0.0712

d. 0.0612

Submit

16.The average closing of a savings banks account which is normally distributed was found to be 35 months

with a S.D of 5 months. Then iv. The probability that it exists between 40 and 45 months is

a. 0.1299

b. 0.1241

c. 0.1311

d. 0.1359

Submit

17.There are 625 packets of a product. Each packet contains 4 products. The probability that a product will be

defective is 0.2. Then i. Expected number of packets to contain zero defectives

a. 270

b. 250

c. 256

d. 260

Submit

18.There are 625 packets of a product. Each packet contains 4 products. The probability that a product will be

defective is 0.2. Then ii. Expected number of packets to contains exactly two defectives

a. 95

b. 100

c. 90

d. 96

Submit

19.There are 625 packets of a product. Each packet contains 4 products. The probability that a product will be

defective is 0.2. Then iii. Expected number of packets to contain 3 or more defectives

a. 20

b. 16

c. 12

d. 10

Submit

20.There are 625 packets of a product. Each packet contains 4 products. The probability that a product will be

defective is 0.2. Then iv. Expected number of packets to contain 1 or 2 defective

a. 300

b. 352

c. 310

d. 340

Unit7 - 4 Mark Quiz Questions

1.From a population whose mean is 40, a random sample of 10 are taken. The sample mean is 39.2 and

S.D 4. i. Population parameter and sample Statistics are

a. 10, 40

b. 40, 39.2

c. 40, 10

d. 40, 39.2, 40

Submit

2.From a population whose mean is 40, a random sample of 10 are taken. The sample mean is 39.2 and

S.D 4. ii. Standard error of mean is

a. 1.33

b. 2.0

c. 1.25

d. 0.9

Submit

3.From a population whose mean is 40, a random sample of 10 are taken. The sample mean is 39.2 and

S.D 4. iii. 39.2 is known as

a. Confidence value

b. Internal estimate

c. Point estimate

d. Parameter

Submit

4.From a population whose mean is 40, a random sample of 10 are taken. The sample mean is 39.2 and

S.D 4. iv. The internal estimate can be found if

a. Population size is known

b. Confidence level is given

c. Population S.D is known

d. If sample size is greater than 30

Submit

5.From past records the liking of customers towards the colour of product Viz, Red, green, pink, blue and

yellow were found to be in the ratio 2:3:5:3:2 respectively. A sample of 300 customer revealed the liking

towards the colour as 39, 62, 100, 60, 41 respectively. i. The sample has followed

a. Principle of validity

b. Law of statistical regularity

c. Principle of Inertia of large numbers

d. Principle of optimization

Submit

6.From past records the liking of customers towards the colour of product Viz, Red, green, pink, blue and

yellow were found to be in the ratio 2:3:5:3:2 respectively. A sample of 300 customer revealed the liking

towards the colour as 39, 62, 100, 60, 41 respectively. ii. The population considered is

a. Hypothetical

b. Imaginary

c. Existent

d. Infinite

Submit

7.From past records the liking of customers towards the colour of product Viz, Red, green, pink, blue and

yellow were found to be in the ratio 2:3:5:3:2 respectively. A sample of 300 customer revealed the liking

towards the colour as 39, 62, 100, 60, 41 respectively. iii. Exact proportion has been found in the sample

for colours

a. Red and Green

b. Red and Blue

c. Green and Yellow

d. Pink and Blue

Submit

8.From past records the liking of customers towards the colour of product Viz, Red, green, pink, blue and

yellow were found to be in the ratio 2:3:5:3:2 respectively. A sample of 300 customer revealed the liking

towards the colour as 39, 62, 100, 60, 41 respectively. iv. The method adopted to estimate population

values results in

a. Saving of time and cost

b. Saving of time and profit

c. Saving of labour and profit

d. Saving of customers time

Submit

9.Sundaram motors wants to find the proportion of car owners using their cars. It collects information from

RTO of Tamil Nadu by selecting "n" unit at fixed interval from Car Registration book iii. The precaution that

should be taken for this type of sampling is

a. Trend should not be present

b. Periodic features should be present

c. Periodic features should not exist

d. Seasonal

Submit

10.Sundaram motors wants to find the proportion of car owners using their cars. It collects information

from RTO of Tamil Nadu by selecting "n" unit at fixed interval from Car Registration book i. The type of

sampling adopted is known as

a. Simple random sampling

b. Stratified

c. non-random sampling

d. Systematic

Submit

11.Sundaram motors wants to find the proportion of car owners using their cars. It collects information

from RTO of Tamil Nadu by selecting "n" unit at fixed interval from Car Registration book ii. The fixed

interval is determined by

a. n/N

b. KN

c. Kn

d. N/n

Submit

12.Sundaram motors wants to find the proportion of car owners using their cars. It collects information

from RTO of Tamil Nadu by selecting "n" unit at fixed interval from Car Registration book iv. The

a. Variable

b. Continuous

c. Attribute

d. Discrete

Submit

13.The Karnataka Government wishes to experiment with a policy on Twenty villages spread over the

state. The success of the policy is measured by agreement or disagreement of the people i. The type of

sampling that will be adopted is

a. Simple random sampling

b. Systematic

c. Multistage sampling

d. Stratified

Submit

14.The Karnataka Government wishes to experiment with a policy on Twenty villages spread over the

state. The success of the policy is measured by agreement or disagreement of the people ii. The type of

measurement made belongs to

a. Variable

b. Continuous

c. Attribute

d. Discrete

Submit

15.The Karnataka Government wishes to experiment with a policy on Twenty villages spread over the

state. The success of the policy is measured by agreement or disagreement of the people iii. The sampling

units are

a. State

b. Villages

c. People of the state

d. People in selected village

Submit

16.The Karnataka Government wishes to experiment with a policy on Twenty villages spread over the

state. The success of the policy is measured by agreement or disagreement of the people iv. Scope and

purpose of the survey is

a. Clumsy

b. Crystal clear

c. Shabby

d. Not clear

Submit

Unit8 – 4 Mark Quiz Questions

1.A good Estimator should satisfy i. The criteria

a. Unbiasedness and reliability

b. Consistency, Sufficiency, Efficiency and Unbiasedness

c. Unbiasedness and consistency

d. Consistency and accuracy

Submit

2.A good Estimator should satisfy ii. By consistency we mean

a. Statistics calculated form sample is accurate

b. Statistics calculated from sample is reliable

c. As n ? ?, the sample value approaches parameter value

d. Mean of the sampling distribution is equal to population mean

Submit

3.A good Estimator should satisfy iii. By sufficiency we mean

a. The estimator makes much use of information given

b. Sample size is sufficient

c. Reliability is sufficient

d. Accuracy is sufficient

Submit

4.A good Estimator should satisfy iv. By efficiency we mean

a. Standard error of statistics is small

b. Mean is very efficient estimator

c. Standard error of statistics is reliable

d. Standard error of statistics is sufficient

Submit

5.For the sample values 10, 12, 15, 18, 22, 25, 32, 34 i. Mean is

a. 22.00

b. 21.0

c. 22.34

d. 21.15

Submit

6.For the sample values 10, 12, 15, 18, 22, 25, 32, 34 ii. The standard error of mean is

a. 3.25

b. 3.40

c. 3.22

d. 3.14

Submit

7.For the sample values 10, 12, 15, 18, 22, 25, 32, 34 iii. 95% confidence limits are

a. 21 ? 7.0

b. 21 ? 6.1

c. 21 ? 7.4

d. 21 ? 6.5

Submit

8.For the sample values 10, 12, 15, 18, 22, 25, 32, 34 iv. Coefficient of variation is

a. 40.2%

b. 42.4%

c. 42.0

d. 41.0%

Submit

9.Mean of a sample size of 15 is 40. Its standard deviation is 8 i. Standard error of mean is.

a. 1.25

b. 1.33

c. 1.42

d. 2.14

Submit

10.Mean of a sample size of 15 is 40. Its standard deviation is 8 ii. The standard deviation being same,

for the standard error to be 1.07, the sample size should be

a. 50

b. 57

c. 38

d. 30

Submit

11.Mean of a sample size of 15 is 40. Its standard deviation is 8 iii. 95% confidence interval for the mean

is

a. 40 ? 3.2

b. 40 ? 3.5

c. 40 ? 4.6

d. 40 ? 5.0

Submit

12.To know the popularity of a particular brand sales manager of a company gathered information by

oral interview. Out of 600 people interviewed 420 actually use this brand. The director was not happy

with the information. He would like to know the confidence level in the statement i. What type of

information the director got from the sales manager.

a. Interval estimate

b. Over estimate

c. Underestimate

d. Point estimate

Submit

13.To know the popularity of a particular brand sales manager of a company gathered information by

oral interview. Out of 600 people interviewed 420 actually use this brand. The director was not happy

with the information. He would like to know the confidence level in the statement ii. The point estimate

is given by

a. 75%

b. 70%

c. 80%

d. 60%

Submit

14.To know the popularity of a particular brand sales manager of a company gathered information by

oral interview. Out of 600 people interviewed 420 actually use this brand. The director was not happy

with the information. He would like to know the confidence level in the statement iii. 95% confidence

interval for the estimate is

a. 0.7 ? 0.037

b. 0.7 ? 0.121

c. 0.7 ? 0.056

d. 0.7 ? 0.113

Submit

15.To know the popularity of a particular brand sales manager of a company gathered information by

oral interview. Out of 600 people interviewed 420 actually use this brand. The director was not happy

with the information. He would like to know the confidence level in the statement iv. 99% confidence

interval for the estimate is

a. 0.7 ? 0.048

b. 0.7 ? 0.120

c. 0.7 ? 0.142

d. 0.7 ? 0.151

Submit

Unit9 - 4 Mark Quiz Questions

a. c

b. a

c. b

d. d

2.

a. c

b. b

c. a

d. d

Submit 3.

a. a

b. d

c. c

d. b

Submit

4.

a. c

b. d

c. a

d. b

Unit10 - 4 Mark Quiz Questions

a. c

b. b

c. d

d. a

Submit

2.

a. a

b. c

c. b

d. d

Submit

3

a. a

b. c

c. b

d. d

Submit

a. b

b. c

c. a

d. d

Unit11 - 4 Mark Quiz Questions

1.

a. d

b. c

c. a

d. b

2.

a. b

b. c

c. a

d. d

3.

a. a

b. c

c. d

d. b

4.

Submit

a. b

b. c

c. a

d. d

Unit12 - 4 Mark Quiz Questions

1.

a. d

b. c

c. a

d. b

Submit

2.

a. d

b. a

c. c

d. b

Submit

3.

a. b

b. a

c. d

d. c

Submit

4.

a. b

b. c

c. d

d. a

Submit

Unit13 - 4 Mark Quiz Questions

1.A Business man would like to know what is Business forecasting. He has the

following doubts i. In which one of the following cases forecast will not be applied

a. Share prices

b. Amount of rain expected

c. Temperature of the day

Submit

2.A Business man would like to know what is Business forecasting. He has the

following doubts ii. Business forecasting means

a. Analysis of data published by Government

b. Just analysis of past economic conditions

c. Past and present economic conditions

d. Just analysis of present economic conditions

Submit

3.A Business man would like to know what is Business forecasting. He has the

following doubts iii. Objective of Business forecasting is

a. To reduce wastages

b. To increase efficiency of production

c. To give a measure for uncertainty and reduce uncertainty

d. To reduce labour effort

Submit

4.A Business man would like to know what is Business forecasting. He has the

following doubts iv. What is a prediction

a. Estimates based on past data

b. Estimate based on projection

c. Estimates based on Mathematical theories

d. Estimate based on assumptions

Submit

5.A company wishes to increase its sales. It experiments with various slabs of

expenses in Advertisement and collects data. i. The most suitable method of

forecasting will follow

a. Time-lag theory

b. Reaction theory

c. Rhythm theory

d. Action theory

Submit

6.A company wishes to increase its sales. It experiments with various slabs of

expenses in Advertisement and collects data. ii. To find the relationship between

advertisement expenses and sales; it should use

a. Lag correlation

b. Auto correlation

c. Correlation

Submit

7.A company wishes to increase its sales. It experiments with various slabs of

expenses in Advertisement and collects data. iii. Action and reaction theory finds

a. Irregular movement

b. Seasonal movements

c. Four phases of Business activity

d. Trend

Submit

8.A company wishes to increase its sales. It experiments with various slabs of

expenses in Advertisement and collects data. iv. According to Rhythm theory

a. All economic and business events behave in any order

b. All economic and business behave erratically

c. All economic and business in opposite directions

d. All economic and business in the same order

Submit

9.An economist will like to predict the cost of living index due to hike in petrol

prices i. For analysis he will study

a. Past and Present behaviour of cost of living index due to rise in petrol price

b. Why changes occurred in the past

c. The phases of business activity

d. Some barometers

Submit

10.An economist will like to predict the cost of living index due to hike in petrol

prices ii. He will collect information on

a. Rises

b. Cost of living

c. Prices

d. Cost of living index and corresponding rises in petrol price

Submit

11.An economist will like to predict the cost of living index due to hike in petrol

prices iii. The analysis can be based on

a. Mathematical theories

b. Time series

c. Regression Models

d. Economic theories

Submit

12.An economist will like to predict the cost of living index due to hike in petrol

prices iv. If he wants to predict in terms of the percentage increase he should use

a. Semi-log trend

b. Modified exponential curve

c. Gompertz curve

d. Arithmetic trend

Submit

13.i. The export and import statistics of leather and leather related goods acts as a

barometer for

a. Specific individual

b. Specific firm only

c. General Business activities

d. Specific Business activities

Submit

14.ii. Health statistics published by Government of India acts as a barometer for

a. Local people

b. Planning health-care activities by Government

c. Planning health by Doctors

d. Some states

Submit

15.iii. Business barometer is a

a. Scientific and reliable tool for making decisions

b. Tool for measuring depressions in business

c. Tool for controlling unnecessary expenses

d. Tool for measuring booms in business

Submit

16.iv. Extrapolation method of business forecasting assumes

a. Constant growth in Arithmetic trend

b. Different rate of growth in Arithmetic trend

c. Constant % increase in Arithmetic trend

d. Constant growth in semi-log trend

Submit

Unit14 - 4 Mark Quiz Questions

1.Mrs. Mallini is a science student. She has data on development of micro

organism over regular interval of time. She wants to know the relationship

between time and development of micro organism. She approaches Mrs. Shalini,

a Statistician and clears certain doubts. i. By time series we understand

a. Set of values recorded over a period at regular interval

b. Set of values recorded over a period of time

c. Set of values observed in a month

d. Set of values observed in a day

Submit

2.Mrs. Mallini is a science student. She has data on development of micro

organism over regular interval of time. She wants to know the relationship

between time and development of micro organism. She approaches Mrs. Shalini,

a Statistician and clears certain doubts. ii. Time series is in a month not caused

by

a. Individuals liking

b. New technological inventions

c. Changes in customs and habits

d. Population changes

Submit

3.Mrs. Mallini is a science student. She has data on development of micro

organism over regular interval of time. She wants to know the relationship

between time and development of micro organism. She approaches Mrs. Shalini,

a Statistician and clears certain doubts. iii. The one of the components of time

series is

a. Time variations

b. Observational variations

c. Measuremental variation

d. Erratic variation

Submit

4.Mrs. Mallini is a science student. She has data on development of micro

organism over regular interval of time. She wants to know the relationship

between time and development of micro organism. She approaches Mrs. Shalini,

a Statistician and clears certain doubts. iv. The study of time series helps us

a. To give a measure for increase in the variable

b. To identify the various forces that affect its behaviour

c. To establish certain theories

d. To construct certain indices

Submit

Unit15 - 4 Mark Quiz Questions

1.

1.

a. d

b. c

c. b

d. a

Submit

2.

a. c

b. d

c. b

d. a

Submit

3.

a. d

b. c

c. b

d. a

Submit

4.

a. a

b. b

c. c

d. d