.(Half page with a reference) Discuss the concept of the sign test when comparing two dependent populations.
2.(Half page with a reference)Discuss what is an index number, its characteristics, and reasons for computing an index number.
3.(2 pages with 2 reference)Please include a management decision-making perspective in each topic you analyze:
a. Non-parametric methods; analysis of ordinal data
b. Index numbers
c. Time Series and Forecasting
d. Concept of moving average and its use