LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
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M.Com. DEGREE EXAMINATION – COMMERCE
THIRD SEMESTER – April 2009
CO 3804 – RESEARCH METHODOLOGY
Date & Time: 24/04/2009 / 9:00 – 12:00 Dept. No. Max. : 100 Marks
SECTION: A
Answer All Questions: 10 x 2 = 20
- What is Action Research?
- What criteria should a research problem satisfy?
- How does questionnaire differ from schedule?
- Define a hypothesis.
- What is the rationale of footnotes in a research report?
- Define Type I and Type II errors.
- Under what conditions is it appropriate to use a one – tailed test?
- What is Z test?
- Mention any two conditions to be satisfied for applying Chi square test?
- What do you understand by Non – Parametric tests?
SECTION – B
Answer any five only: 5 x 8 = 40
- Explain the objectives of social research?
- How is research problem selected? Illustrate your answer with suitable examples
- Examine the merits and limitations of experimental approach to research?
- Distinguish between structured and unstructured interview.
- Describe the essential features of a research report.
- What is pilot survey? Explain its usefulness in the context of social research
- Ten students are selected at random from a college and their heights are found to be 100, 104, 106, 110, 118, 120,122,124,126 and 128 cms. In the light of these data discuss the assumption that the mean height of the students of the college is 110cm.
The table value of t at 5% level for 8 df is 2.306 and for 9 df is 2.262 and 10 df is 2.228 for a two tailed test.
- The following data is collected on two characteristics:
Particulars Smokers Non – Smokers
Literate 83 57
Illiterate 45 68
Based on this can you say that there is no relation between the habit of smoking and literacy.
SECTION –C
Answer any two only. 2 x 20 = 40
- Explain the stages involved in formulation of a research project.
- Discuss various approaches to research?
- The following data is relating to the units produced per day by 4 workers in 5 machines of different types. Test whether the four workers differ in terms of mean productivity and test whether the mean productivity is the same for the five different machines.
| Workers | Machine Type | ||||
| 1 | 2 | 3 | 4 | 5 | |
| 1 | 10 | 9 | 8 | 12 | 10 |
| 2 | 11 | 9 | 8 | 12 | 10 |
| 3 | 13 | 10 | 9 | 10 | 11 |
| 4 | 14 | 9 | 8 | 12 | 12 |
- School children taking coaching in three private schools A,B and C secure the following scores out of 100.
| No of Children | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| School – A | 33 | 38 | 39 | 48 | 58 | 70 | 61 | 41 | 45 | 49 |
| School – B | 32 | 15 | 87 | 32 | 22 | 63 | 56 | 57 | 44 | — |
| School – C | 55 | 68 | 27 | 88 | 46 | 52 | 76 | — | — | — |
Test the hypothesis that the students in the three private schools have identical distribution of scores at significance level at 1 %. Apply H test.
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