Question: In a study conducted to investigate browsing activity by shoppers, each shopper was initially classified as a nonbrowser, light browser, or heavy browser. For each shopper, the study obtained a measure to determine how comfortable the shopper was in the store. Higher scores indicated greater comfort. Suppose the following data were collected:

Nonbrowser Light Browser Heavy Browser

4 5 5 5 6 7 6 5 5 3 4 7 3 7 4 4 4 6 5 6 5 4 5 7

a. Use α=.05 to test for differences among comfort levels for the three types of browsers.

b. Use Fisher’s LSD procedure to compare the comfort levels of nonbrowsers and light browsers. Use α=.05. What is your conclusion?