The manager of a chain of electronic products retailers is trying to decide on a location for its newest store. After a thorough analysis, the choice has been narrowed to three possibilities. An important factor in the decision is the number of people passing each location. The number of people passing each location per day was counted during 30 days.

a. Which techniques should be considered to determine whether the locations differ? What are the required conditions? How do you select a technique?

b. Can management conclude that there are differences in the numbers of people passing the three locations if the number of people passing each location is not normally distributed?