ASSIGNMENT
DRIVE SPRING 2015
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 ofa Table with an example

2 (a) Explain Arithmetic mean.

(b) The mean wage is Rs. 75 per day, SD wage is Rs. 5 per day for a group of 1000
workers and the same is Rs. 60 and Rs. 4.5 for the other group of 1500 workers.
Find the mean and standard deviation for the entire group.

3 Mr. Arun and Mr. Bhandari play a game. If Mr. Arun picks up an even number from1 to 6, Mr. Bhandari will pay him double the amount equal to picked up number. If Mr. Arun picks up an odd number then he has to pay amount equal to double the picked up number. What is Mr. Arun’s expectation? Solution 10 10

4 The probability that an employee will get an occupational disease is 20%. In
a firm having five employees, what is the probability that:
i) None of the employees get the disease
ii) Exactly two will get the disease
iii) More than four will contract the disease

5 Microsoft estimated that out of 10,000 potential software buyers, 35% wait to
purchase the new OS Windows Vista, until an upgrade has been released. After an
advertising campaign to reassure the public was released, Microsoft surveyed 3000
buyers and found 950 who are still skeptical. At 5% level of significance, can the
company conclude that the population of skeptical people had decreased?

6 Explain Chi-square test and the conditions for applying chi-square test