Sakuma India Ltd

Presented By:- Jitu jagwani

Jaikishan DhanwaniNelson Sundraj

Jalaj maniGaurav Sharma

Sakuma IndiaAn fmcg company.Product discussed-digital camera.42% market share in still camera market.Their new launched series of cyber shot, 50,000

cameras are already sold.Now in order to get the feedback from the users…

here are various methods given by their employees.Questionnaire survey through email, postal mail or

telephonic interview.Finally the telephonic survey is decided and only

10-20% customer should be contacted.

Now the question arises that how should they contact??? Active company’s blog users. Random sampling Choosing every nth customer. Random groups according to zones,

states and metropolitan cities. Group customers on the basis of camera

model they have buy.

To select a proportionate cluster sample of 5000 members of the total 50,000 consumers belonging to each zone i.e. North, South, East & West

So lets assume that the consumers are divided in this strata or sub-group in 4 different zones…..

north = 15000 south = 13000 east = 12000 west = 10000

Now lets calculate the overall sampling function in the following manner.

f = n/N

= 5000/50,000 = .1 where n = sample size & N = population size

Cluster Sampling Method And Hypothesis Test(ASSUMPTION)

North

South

East West Total

Satisfied 1110

1000

800 800 3710

Not Satisfied

390 300 400 200 1290

Proportion

.74 .76 .67 .80 .74

Zone

N= 50000, so sample of 10% n=5000

Stratified Sampling1 2 3 4 5 6 7 8 9 10 Tota

l

1200

1000

1500

700

1850

600

1500

1000

2800

2850

15000

.01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

120 100 150 70 185 60 150 100 280 285 1500

90 90 120 55 140 55 125 50 200 185 1110

0.75

0.90

.80 .78 .75 .91 .83 .50 .71 .64 .74

CAMERAMODEL

MULTIPLIER

NORTH(15000)

SAMPLE

POPULATION

SATISFIEDPROPORTION

1 2 3 4 5 6 7 8 9 10.75

.90

.80 .78

.75 .91

.83

.50 .71 .64

.70

.80

.75 .65

.76 .86

.76

.62 .68 .72

.80

.85

.78 .70

.80 .88

.72

.58 .74 .69

.79

.87

.79 .69

.82 .82

.85

.68 .70 .66

.76

.85

.78

.70

.78

.86

.79

.59

.70

.67

CAMERAMODEL

Proportion of Satisfied Customers

NORTH

SOUTH

EAST

WEST

AVERAGE SATISFACTION