TUTOR MARKED ASSIGNMENT
Course Code : MCO – 03
Course Title : Research Methodology and Statistical analysis
Assignment Code : MCO - 03 /TMA/2016-17
Coverage : All Blocks
Maximum Marks: 100
Attempt al questions.
1. (a) Explain various methods of collecting praimary data along with the merits and limitations of each of them.
(b) Describe sampling and non sampling errors that may crop up in conducting a research.
With the help of hypothetical figures, elaborate how would you determine the sample size
for your research study.

2. (a) “The shape of graph offers easy and appropriate answers to several questions.” Comment upon the statement.
(b) Explain the use and importance of measure of skewness in a research study. How would you measure the coefficient of skewness?

3. (a) Explain Spearman’s Rank correlation method with the help of hypothetical figures.
(b) Discuss the uses of index numbers in analysing the data related to business and
economic activity.

4. (a) The employees of AB Co. Ltd. have to elect one out of 5 persons to place them in a
committee. Find the probability of selecting a representative that would be either male or
over the age of 35. Details of the members are as follows:

(b) A random sample of 500 flower stems has an average length of 11cm. Can this be
regarded as a sample from a large population with mean as 10.8cm and standard
deviation as 2.38cm?
(c) The duty hours per week of 10 workers, selected randomly were found to be: 6.6, 7.2,
6.8, 9.2, 6.9, 6.2, 6.7, 7.2, 9.7, 10.4 Compute 95% and 99% Confidence intervals for the
average hours of work per week per worker.

5. Write an explantory note on conclusion and genralisation.