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In: Statistics and Probability

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

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.

nonbrowswer: 8, 9, 10, 7, 7, 8, 9, 8

light browser: 7, 8, 7, 6, 9, 6, 8, 7

heavy browser: 3, 5, 3, 5, 2, 4, 3, 5

a. Use  to test for a difference among mean comfort scores for the three types of browsers.

Compute the values identified below (to 2 decimals, if necessary).

Sum of Squares, Treatment =
Sum of Squares, Error =
Mean Squares, Treatment =

Mean Squares, Error =

Calculate the value of the test statistic (to 2 decimals, if necessary). =

b. Use Fisher's LSD procedure to compare the comfort levels of nonbrowsers and light browsers. Use .

Compute the LSD critical value (to 2 decimals).

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