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grandpamyth
13.10.2021 •
Mathematics
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: EducationTax ServicesFood Services Number Sampled101416 Mean Expense (1,000,000s)215.520 Based on the comparison between the mean annual computer technology expense for companies in the tax service and food service industries, the 95% confidence interval shows an interval of -5.85 to 14.85 for the difference. This result indicates that .
Select one:
a. There is no significant difference between the two industry technology expenses
b. The interval contains a difference of 20.7
c. Companies in the food service industry spend significantly more than companies in the tax service industry
d. Companies in the food service industry spend significantly less than companies in the tax service industry
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