A financial services firm is interested in investigating the cost of exporting a company's products in 4 regions worldwide. The financial analysts collect data of the cost associated with compliance of the economy's customs regulations to export a shipment in 10 countries (in US$) selected from each of 4 regions. They would like to investigate whether the average costs of exporting differ across the four regions. To do so, they first conduct a Levene's test for the homogeneity of the variances across the 4 regions at the 5% level using the absolute deviations from the median. The following Table presents the results. Source of Variation MS F P-value F crit SS df 878417.6 3 292805.8 5.78789 0.00245 2.866 Between Groups Within Groups 1821216.5 36 50589.34 Total 2699634.1 39 What is the appropriate interpretation of the Levene's test? Επιλέξτε ένα: O b. O a. There is sufficient evidence that three population variances are significantly different. There is sufficient evidence that one or more population variances are significantly different. There is sufficient evidence that two population variances are significantly different. O c. O d. There is no difference in variance between populations.

A financial services firm is interested in investigating the cost of exporting a company's products in 4 regions worldwide. The financial analysts collect data of the cost associated with compliance of the economy's customs regulations to export a shipment in 10 countries (in US$) selected from each of 4 regions. They would like to investigate whether the average costs of exporting differ across the four regions. To do so, they first conduct a Levene's test for the homogeneity of the variances across the 4 regions at the 5% level using the absolute deviations from the median. The following Table presents the results. Source of Variation MS F P-value F crit SS df 878417.6 3 292805.8 5.78789 0.00245 2.866 Between Groups Within Groups 1821216.5 36 50589.34 Total 2699634.1 39 What is the appropriate interpretation of the Levene's test? Επιλέξτε ένα: O b. O a. There is sufficient evidence that three population variances are significantly different. There is sufficient evidence that one or more population variances are significantly different. There is sufficient evidence that two population variances are significantly different. O c. O d. There is no difference in variance between populations.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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