Embed Size (px)
Citation preview
Overview
Introduction to Data Analysis
Business Intelligence
Overview of
Statistics
Database Management
SQL Server and Queries
Software Tools to be used
2 By Nikesh Bajaj
Introduction
Data Analysis
Business Intelligence
Where it is used?
What Organizations expect from you?
What we are going to cover in Training?
By Nikesh Bajaj3
Data Analysis
What?
Where?
How?
By Nikesh Bajaj4
Business Intelligence
How Business uses Data Analysis?
What they care about?
What they want?
How they do it?
By Nikesh Bajaj5
Data Analysis and Business
Lot’s of Data is Available
your job is to make sense of it
Clean and Organize your data
Visualize it (Excel/SAS/R)
Draw the Conclusion
Predict the future by experimenting and testing
Hypothesis
Display the finding with clear visualization
By Nikesh Bajaj6
Examples –Case Study
Recommending products to costumers
eBay, Facebook, Flipkart, etc.
Daily Sales and costumers profiling
Reliance, Best Price, Big Bazar, Easy Day
Predicting Loan Defaulter
ICICI, Kotak Mahindra
Launching a New product
Cost, Quality, Quantity, Label, Area, Class
Adds,
By Nikesh Bajaj7
Examples –Case Study
Sales of a product
Area, Effect of Adds, Sales Rep.
Cutting pricing on Advertisements
Complete Case
Impact of campaign on Sale
Increment and Decrement in Sale
Market Research - Surveys
By Nikesh Bajaj8
Business Intelligence
Product developer researching viability of
new product
Marketing Manager gauging effectiveness
of a campaign
Salesmen presenting data to client
By Nikesh Bajaj9
Conclusion
What is Data Analysis?
Business Intelligence?
By Nikesh Bajaj10
Course Structure
Statistics: Computation and Interpretation
Excel
Data Analysis
Using SAS, Excel and R*
Dashboard Designing
using Excel/ VBA
Database
SQL, Server and Query, DBMS etc
By Nikesh Bajaj11
Course Structure
Case Studies
Project Work with Given Data
By Nikesh Bajaj12
References
Book: First Head “Statistics” O’Relley
http://www.statistics.com/
By Nikesh Bajaj13
Software Tools
Microsoft Excel
SAS * (More in Demand)
SQL/DBMS
R (Freeware, used in Academics)
XL miner/
DMExpress/Informatica (used in CTS)
Microsoft BI
OLAP, Tableau, Spotfire, Qlikview
By Nikesh Bajaj14
Overview
DBMS
SQL
DATA Mining
Statistics
By Nikesh Bajaj15
Let’s See things
as Data Analyst
Your first day at Job as Data Analyst
You are sent a report to review and
draw you analysis for sale to increase
By Nikesh Bajaj17
What you see?
By Nikesh Bajaj18
Data Analyst
Good Data Analyst always want to see the Data
first
Data Analysis covers lots of skills and activities
But Good Data analysis always go through basic
process and think carefully about the problem
By Nikesh Bajaj19
Data Analyst
Define your problem first
Data analysis is all about breaking problem
and data into smaller pieces
Analysis and draw your conclusion
Finally put everything back and
recommend or make a decisionBy Nikesh Bajaj20
Data Visualization
–Charts and Graphs
Nikesh Bajaj
Asst. Prof., ECE Dept.
Lovely Professional University
Statistics: Everywhere
Statistics are numbers that
summarize raw facts and
figures in some meaning full
way
By Nikesh Bajaj23
Why Statistics?
To know what’s really going on
You’ll be able to make objective decision,
make accurate prediction
??: Can be lie or misleading
Without it you can be fooled
With it, you are in “strong position”
You are much better “equipped”
By Nikesh Bajaj24
Example
What you can say about this??
??? What’s going on?By Nikesh Bajaj25
Statistics
What would you do first with any given
data??
Plots and Visualize it
By Nikesh Bajaj26
??
By Nikesh Bajaj27
?
So
Choose right chart for your Data
Which one?
Bar Graph
Pie Chart
Continues Plot
Discrete
Histogram
By Nikesh Bajaj28
When frequency is given
Games of different
Relative FrequencyBy Nikesh Bajaj29
Pie Chart
Costumer Satisfaction
Pie-Chart –Not usefulBy Nikesh Bajaj30
When Pie chart is used
By Nikesh Bajaj31
Bar Chart- Horizontal
By Nikesh Bajaj32
Bar Chart - Vertical
Greater degree of Precession
When category are roughly of same size
By Nikesh Bajaj33
Bar Chart
By Nikesh Bajaj34
Percentage or
Frequency
By Nikesh Bajaj35
Problem Key Points
By Nikesh Bajaj36
???
Dealing with Multiple set of Data
By Nikesh Bajaj37
Segmented Bar Chart
By Nikesh Bajaj38
Another Kind of Chart
By Nikesh Bajaj39
Exercise
By Nikesh Bajaj40
Another Problem: New Game
Org. is testing new game with group of
volunteers, Here is data
What chart you would use?
By Nikesh Bajaj41
Data: Category Vs Number
Category or Numerical or
Qualitative Data Quantitative Data
By Nikesh Bajaj42
Histogram
By Nikesh Bajaj43
Histogram
Plot it……
By Nikesh Bajaj44
Plot Histogram
# of people spend Hours on game
By Nikesh Bajaj45
HW
Questions
Recognize and Interpret
By Nikesh Bajaj46
Conclude
Pie-Chart
Bar Graph
Vertical
Horizontal
Segmented
other
Histogram
By Nikesh Bajaj47
Percentage or
Frequency plot
Categorical or
numerical data
Statistics
Descriptive Statistics
Inferential Statistics
By Nikesh Bajaj48
