a. Calculate the mean commute time for each city in Table 12.1. b. Does there seem to

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a. Calculate the mean commute time for each city in Table 12.1.

b. Does there seem to be a difference among the mean one-way commute times for these six cities?

c. Calculate the standard deviation for each of the six cities’ commute times.

d. Does there seem to be a difference among the standard deviations of the one-way commute times for these six cities?

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