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A random sample of 40 companies with assets over $10 million was surveyed and asked to indicate their industry and annual computer technology expense. The ANOVA comparing the average computer technology expense among three industries rejected the null hypothesis. The mean square error (MSE) was 195. The following table summarized the results: Education Tax Services Food Services Number Sampled 10 14 16 Mean Expense (1,000,000s) 2 15.5 20 Based on the comparison between the mean annual computer technology expense for companies in the food services and tax services industries, the 95% confidence interval shows an interval of -5.85 to 14.85 for the difference. This result indicates that

A random sample of 40 companies with assets over $10 million was surveyed and asked to indicate their industry and annual computer technology expense. The ANOVA comparing the average computer technology expense among three industries rejected the null hypothesis. The mean square error (MSE) was 195. The following table summarized the results: Education Tax Services Food Services Number Sampled 10 14 16 Mean Expense (1,000,000s) 2 15.5 20 Based on the comparison between the mean annual computer technology expense for companies in the food services and tax services industries, the 95% confidence interval shows an interval of -5.85 to 14.85 for the difference. This result indicates that

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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A random sample of 40 companies with assets over $10 million was surveyed and asked to indicate their industry and annual computer technology expense. The ANOVA comparing the average computer technology expense among three industries rejected the null hypothesis. The mean square error (MSE) was 195. The following table summarized the results: Education Tax Services Food Services Number Sampled 10 14 16 Mean Expense (1,000,000s) 15.5 20 Based on the comparison between the mean annual computer technology expense for companies in the food services and tax services industries, the 95% confidence interval shows an interval of –5.85 to 14.85 for the difference. This result indicates that
Transcribed Image Text:A random sample of 40 companies with assets over $10 million was surveyed and asked to indicate their industry and annual computer technology expense. The ANOVA comparing the average computer technology expense among three industries rejected the null hypothesis. The mean square error (MSE) was 195. The following table summarized the results: Education Tax Services Food Services Number Sampled 10 14 16 Mean Expense (1,000,000s) 15.5 20 Based on the comparison between the mean annual computer technology expense for companies in the food services and tax services industries, the 95% confidence interval shows an interval of –5.85 to 14.85 for the difference. This result indicates that
Multiple Choice the interval contains a difference of 20.7 companies in the food service industry spend significantly less than companies in the tax service industry there is not enough evidence of a significant difference between the two industry technology expenses companies in the food service industry spend significantly more than companies in the tax service industry
Transcribed Image Text:Multiple Choice the interval contains a difference of 20.7 companies in the food service industry spend significantly less than companies in the tax service industry there is not enough evidence of a significant difference between the two industry technology expenses companies in the food service industry spend significantly more than companies in the tax service industry
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