JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MBA 2020 RESEARCH METHODOLOGY AND STATISTICAL ANALYSIS Previous Question Paper (January - 2020 - R19)
This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
Answer all questions. Each question carries 5 marks.
What are the features of a good research study?
Answer
A good research study is characterized by being systematic, following a structured procedure; logical, based on valid inductions and deductions; empirical, grounded in direct experience or observation; replicable, allowing others to verify findings; and cyclical, often leading to new research questions. It must also be objective, controlled, and focused on solving a specific problem or testing a hypothesis.
List and describe some sources of primary data collection.
Answer
Primary data is collected firsthand for a specific research purpose through the following methods:
- Observation: Researchers record behavior or events as they occur without direct interaction.
- Interviews: Direct verbal communication (structured or unstructured) between the researcher and the respondent.
- Questionnaires/Surveys: A set of written questions distributed to a sample population to gather quantitative or qualitative data.
- Experiments: Controlled manipulation of independent variables to observe their effect on dependent variables.
Differentiate between univariate and multivariate data.
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When is a t-test used? What are its different types?
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What are some problems that are encountered while constructing index numbers?
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Part B
Answer any one full question from each unit.
What is meant by research? What are the objectives of research and its managerial value? What are the different types of research? Discuss in detail.
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Describe the research process in detail. Take an example of doing market research before launching a new product.
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What are the features of a good research design?
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What is a research design? Discuss the different types of common research designs.
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Define tabulation. Explain in detail the different parts of a table.
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What is a dependent sample or repeated measures t-test? Explain its use by giving a suitable example.
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What is ANOVA? How is an ANOVA table setup?
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Use the sample data below to test the hypotheses Ho : p1 = p2 = p3, H1 : Not all population proportions are equal. Where pi is the population proportion of Yes response for population i. Using a 0.05 level of significance, what is the p-value and what is your conclusion?
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What do you understand by Exploratory Factor Analysis? Explain its use-case and utility for research by giving a suitable example.
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Consider the following time series data: Week 1, 2, 3, 4, 5, 6 with Units 18, 13, 16, 11, 17, 14. Develop a three-week moving average forecasts for this time series. Compute MSE and a forecast for week 7. Use alpha 0.2 to compute exponential smoothing forecasts for the time series.
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