# SMU MBA ASSIGNMENTS

## MB0040 STATISTICS FOR MANAGEMENT

ASSIGNMENT

DRIVE: SUMMER 2014

PROGRAM: MBA/ MBADS/ MBAFLEX/ MBAHCSN3/ PGDBAN2

SEMESTER: I

SUBJECT CODE & NAME: MB0040 STATISTICS FOR MANAGEMENT

BK ID: B1731

CREDITS: 4 MARKS 60

Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Q.No Questions Marks Total Marks

1.Distinguish between Classification and Tabulation. Explain the structure and components of a Table with an example.

Meaning of Classification and Tabulation

Differences between Classification and Tabulation

Structure and Components of a Table with an example

2.a) Describe the characteristics of Normal probability distribution.

b) In a sample of 120 workers in a factory, the mean and standard deviation of wages were Rs. 11.35 and Rs.3.03 respectively. Find the percentage of workers getting wages between Rs.9 and Rs.17 in the whole factory assuming that the wages are normally distributed.

Characteristics of Normal probability distribution

Formula/Computation/Solution to the problem

3.a) The procedure of testing hypothesis requires a researcher to adopt several steps. Describe in brief all such steps.

b) Distinguish between:

i. Stratified random sampling and Systematic sampling

ii. Judgement sampling and Convenience sampling

Hypothesis testing procedure

Differences

4.a) What is regression analysis? How does it differ from correlation analysis?

b) Calculate Karl Pearson’s coefficient of correlation between X series and Y series.

 X 110 120 130 120 140 135 155 160 165 155 Y 12 18 20 15 25 30 35 20 25 10

Meaning of Regression and Correlation

Differences

Formula/ Computation/ Solution to the problem

5.Briefly explain the methods and theories of Business forecasting.

6.Construct Fisher’s Ideal Index for the given information and check whether Fisher’s formula satisfies Time Reversal and Factor Reversal Tests.

 Items P0 Q0 P1 Q1 A 16 5 20 6 B 12 10 18 12 C 14 8 16 10 D 20 6 22 10 E 80 3 90 5 F 40 2 50 5

Formula of Fishers Ideal Index

Computation of Fisher’s Ideal Index

Fisher’s formula satisfies Time Reversal Test

Fisher’s formula satisfies Factor Reversal Test