Question 17

O 72 QUESTION 17 A researcher wants to see if factory workers' productivity levels are affected by watching a documentary on the dangers of capitalism. He measures a sample of n - 62 workers productivity levels before and after to determine If they were affected, The researcher observed a test statistic of t - 2.32. What would be his decision and MOST appropriate conclusion if testing at an alpha level = 0.05? O Reject Null Hypothesis (HO). The factory workers productivity was significantlly affected by viewing the documentary. O Reject Null Hypothesis. Factory workers increased their productivity after viewing the documentary. O Retain Null Hypothesis. There was no significant change in workers' productivity after viewing the documentary