Kerala University 2011 M.B.A First semester (ft/pt) ,uary (2009 scheme) 104:: quantitative techniques - Question Paper

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FIRST SEMESTER MBA (FT/PT) DEGREE EXAMINATION,JANUARY 2011
(2009 SCHEME)

MBA 104:: QUANTITATIVE TECHNIQUES

PART A

First Semester M.B.A. Degree Examination, Janttary

(2009 Scheme)

MBA 104: QUANTITATIVE, TECHNIQUES

Time: 3 Hours

Max. Marks 60

Write short notes on any five questions, ftuch question carric 3 marks. (JL Addition rule of probability.

oisson Distribution.

3. Co-efficient of variation.

4. Scalar matrix.

5. Chi-square test.

6/Independent variables

7. Moving Average.

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8.NiCarl Pearsons coefficient of correlation.

(5x3=15 Marks)

PART B

Answer any three questions. Each question carrics 10 marks.

9. Calculate correlation between X and Y for the following data: X : 12 9 8 10 11 13 7

14

8

II

12

Y:

P.T.O

6249

10. Briefly explain the di fferent methods of sampling.

A

11. What are the steps adopted for the testing of Hypothesis ?

12. Find the probability that exactly two defectives will be found in a packet of 100 blades, if experience shows that 3% of such blades are defective.

13. Find out the combined mean .ind standard deviation from the following data.

	Series A	Series B
No. of items	100	500
Mean	50	60
Standard deviation	10	U

(3x10=30 Marks)

PART C

Answer any one of the following questions:

14/ A set of 5 coins is tossed 3200 times and the no. of heads appearing each time is noted. The results are given below:

No. of heads: 0.1 2 3 4 5

Frequency ; 80 570 1100 900 500 50

Test the hypothesis that coins are unbiased. Use Chi-square Test.

15.j The price of a certain commodity was ascertained in each of the four towns A, B, C, D in four quarters of a year. The prices are given beiow. Are the variations in prices between different towns and in different seasons significant ?