Question

Problem 3 A researcher interested in employee satisfaction and productivity measured the number of units produced by employees at a plant before and after a company-wide pay raise occurred. The researcher hypothesizes that production would be higher after the raise compared to before the raise Participants Before GHI 5 8 13 14 13 Total After d = After - Before (d. a. Complete the table by finding the difference. b. Calculate the mean (d) and the standard deviation (Sd) for the difference. e. Using a 5% significance level, can you conclude that the production would be higher after the raise compared to before the raise? Assume that the population of paired differences hus a normal distribution. (Use the 5 steps hypothesis testing procedure) d. Calculate p-value and confirm your answer.