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 a store. Higher scores indicated greater comfort. Suppose the following data were collected. Non-browser 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

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