Friday, December 05, 2014

Dibrugarh University (M.Com - Distance) - Research Methodology and Statistical Analysis (Nov - Dec' 2010)

2010 (November – December)

Paper: 203

Full Marks: 80

Time: 3 Hours

1. (a) Substantiate the statement, ‘Research encompasses activities that increase the sum of human knowledge’.          16

OR

(b) What are the components of Research Design in social science?                         16

2. (a) what are the degree and types of correlation? How is Karl Pearson’s coefficient of correlation calculated?

Or

(b)  What are index numbers? How are they constructed and what are the main difficulties in their construction?                                             16


3. (a) Explain the approach to probability. Under what condition is the classical approach not appropriate to employ?      16

OR

(b) The number of defects per unit in a sample of 330 units of manufactured product was found as follows ;
                No. of defects :                 0              1              2              3              4
                No. of units      :                 214         92           20           3              1
Fit a passion distribution to the data and test for good of fit.    16

4. (a) Memory capacity of five student was tested before and after training. State at 5% level of significance whether the training was effective from the following scores :                             16
Student:
1
2
3
4
5
6
7
8
9
Before:
10
15
9
3
7
12
16
17
4
After:
12
17
8
5
6
11
18
20
3

OR


(b) Distinguish between the following :                                    4*4=16
(i) Simple hypothesis and composite hypothesis
(ii) Null hypothesis and alternative hypothesis
(iii) One-tailed test and two tailed test
(iv) type I error and type II error       

5. (a) what are the basic requirements of a good research report?

OR


(b) In a certain sample of 2000 families, 1400 families are consumers of tea. Out of 1800 hindu families, 1236 families consume tea. Use chi square distribution to test whether there is any significant difference between consumption of tea among Hindu and Non- Hindu families.                                                  16