The human resources director of a large company recently asked her staff to conduct a study of the airline miles traveled by executives of the company during the most recent calendar year. The analyst...

Extracted text: The human resources director of a large company recently asked her staff to conduct a study of the airline miles traveled by executives of the company during the most recent calendar year. The analyst assigned to the project randomly sampled 17 male executives and 17 female executives. Of particular interest to the HR director is whether males have greater variability in miles flown than females. The statistics available below were computed from the samples. Based on these data, what should the HR director conclude if an alpha level equal to 0.05 is used? Click the icon to view the statistics about the number of miles flown. Let sampie 1 De maies ana sampie z be remaies. wnat are tne nul ana aiternative nypotneses O A. Ho o =0 O B. Hg o to OC. Ho o203 OD. Ho o국so HA o >0 Determine the test statistic. F= (Round to two decimal places as needed.) Determine the critical value The critical F-value is (Round to two decimal places as needed.) the null hvnonthesis There is vi evidence to conclude that males have areater variahilitv in miles flown than females


Extracted text: A decision-maker wishes to test the null and alternative hypotheses shown to the right using an alpha level equal to 0.10. The population standard deviations are assumed to be known. After the sample data are collected, the test statistic is computed to be z= 1.53. Complete parts a through c below. HA H1-H2 #0 0= Tr1 - :H a. Using the test statistic approach, what conclusion should be reached about the null hypothesis? Determine the critical value(s) for a = 0.10. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) OA. +Za/2 = + O B. Za O C. -7 State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is not sufficient evidence at a = 0.10 to suggest that the difference of the population means is different from 0. O B. Do not reject the null hypothesis. There is not sufficient evidence at a 0.10 to suggest that the difference of the population means is different from 0. O C. Do not reject the null hypothesis. There is sufficient evidence at a = 0.10 to suggest that the difference of the population means is different from 0. O D. Reject the null hypothesis. There is sufficient evidence at a = 0.10 to suggest that the difference of the population means is different from 0.