In a study conducted to investigate browsing activity by shoppers, each shopper was initially classified as a non-browser, 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.

_________________Light _______Heavy

Non-browser ______ Browser ____ 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 a = .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 non-browsers and light browsers. Use a = .05. What is your conclusion?