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 25 male executives and 25 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 sample 1 be males and sample 2 be females. What are the null and alternative hypotheses? O A. Hoi o? =03 O B. Hoi of ±o? OC. Hoi of O D. Ho: of so? 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.) v the null hypothesis. There is V evidence to conclude that males have greater variability in miles flown than females.
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 25 male executives and 25 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 sample 1 be males and sample 2 be females. What are the null and alternative hypotheses? O A. Hoi o? =03 O B. Hoi of ±o? OC. Hoi of O D. Ho: of so? 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.) v the null hypothesis. There is V evidence to conclude that males have greater variability in miles flown than females.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Please make sure to round to 2 decimal places.
Transcribed Image 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 25 male executives and 25 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 sample 1 be males and sample 2 be females. What are the null and alternative hypotheses?
O A. Ho of = 03
O B. Ho: o o?
O D. Ho: of soz
Ha o? > o?
O C. Ho: o? z03
Determine the test statistic.
E =
E (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 hypothesis. There is
evidence to conclude that males have greater variability in miles flown than females.
Transcribed Image Text:i
Statistics about Miles Flown
Males
Females
Mean Miles
74,445
2,651
66,111
1,536
St. Deviation Miles
Sample Size
25
25
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