Note: Answer any 3 questions from section A. Section B is compulsory.
1. Research process starts from problem definition to the stage of interpretation of results. Briefly name and discuss the five steps of research process.
2. a) Examine the merits and limitations of the observation method in collecting data. Ilustrate your answer with suitable example.
b) Which method is most suitable for conducting an enquiry regarding a family welfare programme in India? xplain its merits and demerits
3. a) List out advantages of sampling over complete enumeration. When is sampling more appropriate than taking a census?
b) Describe the difference between a probability sample and a non- probability sample.
4. a) Describe in brief the importance of editing, coding, classification, tabulation and presentation of data in the context of a research study.
b) Write a format of a good report indicating different parts and their positioning in the report.
5. Write short notes on any four of the following:
a) Simple random method
b) Quota sampling
c) Discriminant analysis and its suitability of use
d) factor loading in factor analysis
e) Model validation
f) manuscript proof reading
g) Different types of experimental design
Section B
6. a) What is the purpose of statistical hypothesis? Discuss null and alternative hypothesis with appropriate examples.
b) A professor is trying to show new students the importance of the quizzes even though 90% of the final grade is determined by exams. He believes that the higher the quiz grades, the higher the final grade. A random sample of 15 students in his class was selected with the data given below:
Quiz average | Final average |
59 | 65 |
92 | 84 |
72 | 77 |
90 | 80 |
95 | 77 |
87 | 81 |
89 | 80 |
77 | 84 |
76 | 80 |
65 | 69 |
97 | 83 |
42 | 40 |
94 | 78 |
62 | 65 |
91 | 90 |
i) Fit a linear regression model of Y (dependent) on X (independent)
ii) Test the validity of the equation
iii) Calculate the co-efficient of determination