In study conducted to investigate browsing activity by shoppers, each shopper was initially classified as a nonbrowser, light browser, or heavy browswer. For each shopper, the study obtained a measure to determine how comfortable a shopper was in a store. Higher scores indicated greater comfort. Suppose the following data was collected. Use a=.05 to test for differences among comfort levels for the three types of browsers. 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.