Exhibit 13

question 65

Multiple Choice

Exhibit 13.3 The ANOVA test performed for Exhibit 13.2 determined that not all mean commute times across the four cities are equal.However,it did not indicate which means differed.To find out which population means differ requires further analysis of the direction and the statistical significance of the difference between paired population means.Fisher 95% confidence intervals are shown below. Refer to Exhibit 13.3.How many pairs of cities show a significant difference in average commute times to work?

• A)2
• B)3
• C)4

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Definitions:

Sherman Act

A landmark federal statute in the field of United States antitrust law passed by Congress in 1890 to prohibit monopolistic business practices.

Illegal

Referring to actions or activities that are prohibited by law.

Promotional Allowances

Financial incentives offered by manufacturers to retailers or wholesalers to encourage the sale or stocking of products.

Robinson-Patman Act

A 1936 United States federal law aimed at preventing unfair competition and price discrimination by regulating trade practices.