JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MBA I RESEARCH METHODOLOGY AND STATISTICAL ANALYSIS Previous Question Paper (March - 2023 - R19)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
PART - A
What is meant by research problem? Explain the meaning of research objectives/goals and scope of research in this context.
Answer
A research problem is a clear, concise statement of an area of concern, a condition to be improved, or a difficulty to be eliminated that requires systematic investigation. Research objectives define the specific goals the researcher aims to achieve, serving as the roadmap for the study. The scope of research delineates the boundaries of the study, specifying what will be covered, the population involved, the time frame, and the specific variables or limitations, ensuring the research remains focused and manageable.
Bring out the essential nature of good research design.
Answer
A good research design is characterized by its ability to minimize bias and maximize the reliability of data collected. Its essential nature includes:
- Objectivity: Ensuring the design is free from researcher bias.
- Validity: Ensuring the tools and methods accurately measure the intended variables.
- Reliability: Ensuring consistency so that the same results are obtained if the study is repeated.
- Generalizability: Allowing findings to be applied to a larger population.
- Efficiency: Providing the most accurate results with the minimum expenditure of time, money, and effort.
What are the various types of line graphs used for representation of statistical information?
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Briefly explain the application of cluster analysis in business research.
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Distinguish between an academic research report and an industrial research report.
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PART - B
Briefly explain the ethical implications in conduct of research from the perspective of Research participants and the researcher.
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What are the sources of research problems?
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What are the sources of errors in measurement?
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How do you classify research as pure and applied? What are their characteristics?
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What is case study approach to research process? Point out its strength and limitations.
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State the nature of exploratory research. Where do you find it appropriate?
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What is control group? What is its role in experimental research? What is the essential criteria in forming control group?
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Explain how systematic random sampling is different from stratified random sampling.
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Represent the following information diagrammatically:
| Factory | Wages (Rs.) | Material (Rs.) | Other costs (Rs.) | Profits (Rs.) | Tax on profit |
|---|---|---|---|---|---|
| A | 50,000 | 50,000 | 10,000 | 10,000 | 3,000 |
| B | 30,000 | 30,000 | 10,000 | 8,000 | 2,400 |
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Explain when t test is used for test of hypothesis.
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In a test given to two groups of students, the marks obtained were as follows:
First group: 18, 20, 36, 50, 49, 36, 49, 34, 41
Second group: 28, 36, 29, 35, 30, 44, 46
At 5% significance, perform the test for the difference between mean marks obtained by the two groups.
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From the following table find the missing values and calculate the coefficient of correlation by Karl Pearson’s method.
X: 6, 2, 10, 4, ?
Y: 9, 11, ?, 8, 7
Arithmetic means of X and Y series are 6 and 8 respectively.
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A company wishes to test whether its three salesmen A, B and C, tend to make sales of the same size or whether differ in their selling ability as measured by the average size of their sales. During the last week, there have been 14 sales calls. A made 5 calls, B made 4 calls and C made 5 calls. The weekly sales in rupees recorded for the three salesmen are given below.
A: 300, 400, 300, 500, 0
B: 600, 300, 300, 400
C: 700, 300, 400, 600, 500
Perform the analysis and give your conclusions.
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The following figures are amount of production of a firm for 9 years. Fit a trend line by the method of semi-averages. Predict the trend values for 2013 and 2014.
| Year | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
| Production in 000 tons | 30 | 40 | 35 | 55 | 45 | 50 | 64 | 50 | 60 |
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What are the limitations of index numbers.
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What is the general format of academic research report?
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