1. Distinguish between “primary data” and “secondary data” with the help of examples.
Which one is easy to collect, why?
2. Discuss the importance of sampling frame. What are the possible errors resulting from a
faulty sampling frame?
3. A salesman paid 12 visits to his area sales manager and noted that he had to wait for
10,15,20,17,11,25,30,27,36,40,5 and 26 minutes, respectively, before being called in his
office. The area sales manager claims that the salesmen wishing to meet him do not have
to wait for more than 20 minutes before being called in. Using the sign test, verify at 0.05
level of significance the claim made by the area sales manager.
4. What is factor analysis? Mention briefly the purpose & uses of factor analysis.
5. Write short note on :
(a) Information reports
(b) Research reports.