SL Graded Quiz #5 X Q Business Statistics: 9-10 Flash C Two accounting professors d x Q Business Statistics: 9-10 Flash X Dashboard X - CD A moodle.straighterline.com/mod/quiz/attempt.php?attempt=4666840&page=11 H straighterline Courses College Credit Credit Transfer My Line Help Center Live Chat (877) 787-8375 My Account MAT150_MH V3 | Topic 10: Regression Analysis Question 12 Two accounting professors decided to compare the variance of their grading procedures. To accomplish this, they each graded the same 10 exams, Not yet with the following results: answered Points out of 4.60 Mean Grade Standard Deviation Professor 1 79.3 22.4 Flag Professor 2 82.1 12.0 question At the 1% level of significance, what is the decision? Select one: a. Reject the null hypothesis and conclude the variances are different. O b. Fail to reject the null hypothesis and conclude the variances are different. O c. Reject the null hypothesis and conclude the variances are the same. O d. Fail to reject the null hypothesis and conclude the variances are the same. PREVIOUS PAGE NEXT PAGE Quiz navigation 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25SL Graded Quiz #5 X Q Business Statistics: 9-10 Flash C Two accounting professors d x Q Business Statistics: 9-10 Flash > Dashboard X - CD A moodle.straighterline.com/mod/quiz/attempt.php?attempt=4666840&page=6 H straighterline Courses College Credit Credit Transfer My Line Help Center Live Chat (877) 787-8375 My Account MAT150_MH_V3 | Topic 10: Regression Analysis Question 7 The annual dividend rates for a random sample of 16 companies in three different industries, utilities, banking, and insurance were recorded. The Not yet ANOVA comparing the mean annual dividend rate among three industries rejected the null hypothesis that the dividend rates were equal. The Mean answered Square Error (MSE) was 3.36. The following table summarized the results: Points out of 4.60 Utilities Banking Insurance Flag Number Sampled 5 5 6 question Mean Annual Dividend Rate 11.62 15.4 17.4 Based on the comparison between the mean annual dividend rate for companies in the utilities and insurance industries, Select one: O a. A confidence interval shows that the mean annual dividend rates are not significantly different O b. The ANOVA results show that the mean annual dividend rates are significantly different O c. A confidence interval shows that the mean annual dividend rates are significantly different O d. The ANOVA results show that the mean annual dividend rates are not significantly different PREVIOUS PAGE NEXT PAGE