Exhibit 13

question 60

Multiple Choice

Exhibit 13.2 A researcher with Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S.cities.The underlying hypothesis is that average commute times are different across cities.To test the hypothesis,the researcher randomly selects six people from each of the four cities and records their one-way commute times to work.Refer to the below data on one-way commute time (in minutes) to work.Note that the grand mean is 36.625. Refer to Exhibit 13.2.Based on the sample standard deviation,the one-way ANOVA assumption which is likely not met is:

• A)The populations are normally distributed
• B)The population standard deviations are assumed to be equal
• C)The samples are independent
• D)None of the above