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. Light Heavy Nonbrowser Browser Browser 10 9 8 11 10 10 12 9 8 9 8 10 9 11 7 10 8 9 11 10 8 10 9 10 Use a=0.05 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). The -value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .10greater than .10 What is your conclusion? - Select your answer -Conclude that the mean comfort scores are not all the same for the browser groupsDo not reject the assumption that the mean comfort scores are equal for the browser groupsItem 7 Use Fisher's LSD procedure to compare the comfort levels of nonbrowsers and light browsers. Use a=0.05. Compute the LSD critical value (to 2 decimals). What is your conclusion? - Select your answer -Conclude that nonbrowsers and light browsers have different mean comfort scoresCannot conclude that nonbrowsers and light browsers have different mean comfort scores
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.
|
|
Light |
Heavy |
|
Nonbrowser |
Browser |
Browser |
||
10 |
9 |
8 |
||
11 |
10 |
10 |
||
12 |
9 |
8 |
||
|
9 |
8 |
10 |
|
|
9 |
11 |
7 |
|
|
10 |
8 |
9 |
|
11 |
10 |
8 |
||
10 |
9 |
10 |
- Use a=0.05 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).
The -value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .10greater than .10
What is your conclusion?
- Select your answer -Conclude that the mean comfort scores are not all the same for the browser groupsDo not reject the assumption that the mean comfort scores are equal for the browser groupsItem 7
- Use Fisher's LSD procedure to compare the comfort levels of nonbrowsers and light browsers. Use a=0.05.
Compute the LSD critical value (to 2 decimals).
What is your conclusion?
- Select your answer -Conclude that nonbrowsers and light browsers have different mean comfort scoresCannot conclude that nonbrowsers and light browsers have different mean comfort scores
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