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 Browser4 5 55 6 76 5 53 4 73 7 44 4 65 6 54 5 7Use alpha = .05 to test for differences among comfort levels for the three types of browsers.