Question 2 The Run 4pts 2 Hours You are examining whether the population variance of returns on the Dow Jones Industrial
Posted: Wed May 11, 2022 2:16 pm
Question 2 The Run 4pts 2 Hours You are examining whether the population variance of returns on the Dow Jones Industrial Average changed following the new Fed chairman appointment in November 2010. You gathered the data for 60 months of returns before and after the event and estimated the variance: before the event variance is 39.34 and the after event variance is 12.3. The critical value, uninga 5 percent significance level and a two-tailed test is 1.67. Formulate null and alternative hypotheses and determine whether to reject null at the 0.05 level of significance. Edit Format Table 12pt < Paragraph BIU e Tv