3.a) The procedure of testing hypothesis requires a researcher to adopt several steps. Describe in brief all such steps. b) Distinguish between: i. Stratified random sampling and Systematic sampling ii. Judgement sampling and Convenience sampling Hypothesis testing procedure Differences
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4.a) What is regression analysis? How does it differ from correlation analysis?
b) Calculate Karl Pearson’s coefficient of correlation between X series and Y series.
| X | 110 | 120 | 130 | 120 | 140 | 135 | 155 | 160 | 165 | 155 | |
| Y | 12 | 18 | 20 | 15 | 25 | 30 | 35 | 20 | 25 | 10 |
Meaning of Regression and Correlation
Differences
Formula/ Computation/ Solution to the problem
5.Briefly explain the methods and theories of Business forecasting.
Meaning of Business forecasting
Methods of Business forecasting
Theories of Business forecasting
