IGNOU MCO-03 December 2023 Previous Year Question Paper

Q1.(i) What are the characteristics of a good research report ?

(ii) Discuss the precautions required at the time of interpretation of data with examples. 8+12 [ 2 ] MCO–3

Q2.(i) What is survey research ? How is it different from observation research ?

(ii) Discuss the sources of sampling and non - sampling errors with suitable examples.

Q3.(i) Explain briefly the additive and multiplicative models of time series. Which of these models is more commonly used and why ?

(ii) Discuss how far the sample proportion satisfies the desirable properties of a good estimator.

Q4.(i) What do you mean by the term “measurement” ? Explain the characteristics and various types of measurement scales.

(ii) How do you select an appropriate scaling technique for a research study ? Explain the issues involved in it.

Q5.(i) Explain the concept of Regres sion and discuss its utility in business research. [ 3 ] MCO–3

(ii) What is Research Design ? Explain the functions of a research design.

Q6.A survey on the heights (in cm) of 50 girls of class X was conducted at a school and the following data were obtained : Height (in cm) Number of girls 120-130 2 130-140 8 140-150 12 150-160 20 160-170 8 Total 50 Find the mode and median of the above data.

Q7.Briefly Comment on any four of the following : 5+5+5+5

(i) Ratio scales permit the researcher to compare both differences in scores and relative magnitude of scores.

(ii) The choice between ranking, sorting, or rating techniques is determined by the problem definition and the type of statistical analysis. [ 4 ] MCO–3

(iii) Type-I error is committed in rejecting a null hypothesis.

(iv) A researcher is expected not only to collect and analyse the data but also to interpret the results of his/her findings.

(v) Statistical method may be defined as “the collection, presentation, analys is and interpretation of numerical data”.

Q8.Write short notes on any four of the following : 5+5+5+5

(i) Response bias

(ii) Likert scale

(iii) Least Square Method

(iv) Standard Error of Estimate

(v) Chi-square test

(vi) Subjective probability

Q9.Distinguish between the following : 10+10

(i) Primary data and Secondary data

(ii) Comparative Scales and Non -Comparative Scales [5] MCO-3