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

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In a study conducted to investigate browsing activity byshoppers, each shopper was initially classified as a nonbrowser,light browser, or heavy browser. For each shopper, the studyobtained a measure to determine how comfortable the shopper was ina store. Higher scores indicated greater comfort. Suppose thefollowing data were collected.
Light Heavy
Nonbrowser Browser Browser
3 4 7
4 5 9
5 4 7
2 3 9
2 6 6
3 3 8
4 5 7
3 4 9
a. Use a= .05 to test for a difference amongmean comfort scores for the three types of browsers.
Compute the values identified below (to 2 decimals, ifnecessary).
Sum of Squares, Treatment
Sum of Squares, Error
Mean Squares, Treatment
Mean Squares, Error
Calculate the value of the test statistic (to 2 decimals, ifnecessary).
b. Use Fisher's LSD procedure to compare thecomfort levels of nonbrowsers and light browsers. Use a= .05 .
Compute the LSD critical value (to 2 decimals).

Answer & Explanation Solved by verified expert

4.4 Ratings (650 Votes)

A PS All of this experiment is a twotailed experiment since we are only checking for difference in mean comfort level and not if one groups comfort level is higherlower than the other You have to create 3 treatment groups in excel or by hand like below and calculate the summary statistics of different groups as follows Summary of Data Treatments Non browser Light browser Heavy browser Total N 8 8 8 24 X 26 34 62 122 Mean 325 425 See Answer

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	Light	Heavy
Nonbrowser	Browser	Browser
3	4	7
4	5	9
5	4	7
2	3	9
2	6	6
3	3	8
4	5	7
3	4	9

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