A consumer group would like to compare the satisfaction ratings of three fast food restaurants: McDoogles, Burger Queen, and Windys. A random sample of satisfaction scores on a scale of 1– 20 was collected from customers at each restaurant. These data can also be found in the Excel file fast food.xlsx. The scores are as follows:
a. Perform a one way ANOVA using α = 0.05 to determine if there is a difference in the average satisfaction scores for the three restaurants.
b. If warranted, perform a multiple comparison test to determine which pairs are different using α = 0.05.
c. Verify your results with Excel or PHStat.

  • CreatedJuly 28, 2015
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