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QUANTITATIVE TECHNIQUES

 

COMMONWEALTH EXECUTIVE


MBA/MPA PROGRAMME


Term-End Examination


June 2010


C-7: QUANTITATIVE TECHNIQUES




Time: 3 hours                                                     Maximum Marks: 100

                                                                                      (Weighting 70%)

 

Note:           (i)     There are two sections.

(ii)    Section A has six questions, each carrying 15 marks.

        Attempt any four questions from section A.

(iii)  Section B is compulsory and carries 40 marks. Attempt

       both questions.

(iv)  Statistical tables may be supplied on request.

 

SECTION- A


 

  1. Describe the main features of the quantitative approach to management. What factors in modern society contribute to the increasing importance of a quantitative approach to management?



  1. Following is the frequency distribution of weights of the 100 male students at XYZ university. Find the arithmetic mean of the weight of the given students.





















Weight

Kg

60-62

63-65

66-68

69-71

72-74
No.of students

5

18

42

27

8


  1. A salesman is known to sell a product in 3 out of 5 attempts. While another salesman in 2 out of 5 attempts. Find the probability that.



  • no sale will be affected

  • Either of them will succeed in selling the product.



  1. What is the major difference between probability and non-probability sampling? List different types of probability and non-probability sampling methods.



  1. The average weekly food expenditure of families in a certain area has a normal distribution with mean = Rs. 125 and standard deviation = Rs. 25. What is the probability that a family selected at random will have an average weekly expenditure on food in excess of Rs. 175/-?



  1. Write short notes on any three of the following:



  • Mode

  • Skewness

  • Criteria of optimism

  • Student and distribution

  • Seasonal variation in Time Series.


 

SECTION- B




  1. What is meant by correlation? What are the limits of the value of correlation coefficient (r) ? What do the positive, negative and zero values of r indicate?



  1. A random sample of 100 recorded deaths in a city in India during the past year showed an average lifespan of 71.8 years with a standard deviation of 8.9 years. Does the average life span today is greater than 70 years. Use 0.05 level of significance.


 
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