Mall Rats An article in AmericanDemographics investigated
Chapter 10, Problem 117(choose chapter or problem)
Mall Rats An article in AmericanDemographics investigated consumer habits at themall. We tend to spend the most money shopping onthe weekends, and, in particular, on Sundays from 4to 6 P.M. Wednesday morning shoppers spend theleast!19 Suppose that a random sample of 20 weekendshoppers and a random sample of 20 weekday shoppers were selected, and the amount spent per tripto the mall was recorded.Weekends WeekdaysSample Size 20 20Sample Mean ($) 78 67Sample Standard Deviation ($) 22 20a. Is it reasonable to assume that the two populationvariances are equal? Use the F-test to test thishypothesis with a .05.b. Based on the results of part a, use the appropriatetest to determine whether there is a difference inthe average amount spent per trip on weekendsversus weekdays. Use a .05.
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