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Oil Change A sizeable automotive service firm surveyed to see how much people thought they should pay on average for an oil change. Their goal

Oil Change

A sizeable automotive service firm surveyed to see how much people thought they should pay on average for an oil change. Their goal was to see if the firm's standard oil change service, priced at $29.99, was significantly different from consumers' perception of average price. They collected answers (Average_Oil_Change) from a group of respondents.

1. Oil Change: Which test should they run to determine if the price is different?

2. Oil Change: Run the appropriate test. What p-value would your report?

3. Oil Change: There is a significant difference between the price for the standard oil change and consumers' "perception of average price." Yes or No

Tax Time

A tax preparation firm owner notices that she is not attracting female customers. She knows that Dewayne "the Rock" Johnson is the most recognized celebrity among women. She decides to use the Rock in her ads to increase female consumers' "intentions to use" the tax service. However, now she is worried that the ad will score low among men. You provide a group of men and women with an ad featuring the Rock (AD_1_Rock). Both groups (men = 1, women = 2) review the ad and fill out a survey that measures their "intent to purchase."

4. Tax Time: Which test should you use here

5. Tax Time: Run the appropriate test. What p-value would your report?

6. Tax Time: The Rock tax ad results show in a significant difference between men's and women's "purchase intention." Yes or No

Average_Oil_Change GENDER AD_1_ROCK AD_Reg_Guy Satisfaction Classic_Cheese New_Cheap_Cheese
27.00 2.00 2.00 3.00 10.00 4.00 2.00
23.00 1.00 2.00 2.00 10.00 1.00 4.00
49.00 2.00 2.00 4.00 8.00 4.00 4.00
37.00 1.00 4.00 5.00 3.00 1.00 4.00
44.00 2.00 2.00 3.00 6.00 1.00 2.00
22.00 1.00 2.00 1.00 9.00 1.00 2.00
22.00 1.00 4.00 4.00 9.00 4.00 4.00
25.00 1.00 2.00 4.00 3.00 2.00 2.00
31.00 1.00 2.00 5.00 7.00 5.00 4.00
44.00 1.00 4.00 1.00 4.00 2.00 2.00
24.00 1.00 3.00 4.00 6.00 3.00 3.00
35.00 1.00 3.00 5.00 6.00 2.00 2.00
22.00 2.00 4.00 2.00 7.00 3.00 3.00
34.00 1.00 2.00 1.00 9.00 3.00 2.00
41.00 2.00 4.00 1.00 6.00 1.00 3.00
34.00 2.00 2.00 2.00 6.00 4.00 4.00
34.00 2.00 3.00 3.00 9.00 2.00 4.00
24.00 1.00 4.00 3.00 4.00 5.00 3.00
27.00 2.00 2.00 3.00 9.00 3.00 2.00
22.00 2.00 4.00 5.00 8.00 4.00 2.00
47.00 2.00 4.00 1.00 8.00 2.00 2.00
34.00 1.00 2.00 3.00 6.00 4.00 3.00
21.00 2.00 4.00 3.00 5.00 1.00 4.00
44.00 2.00 3.00 3.00 7.00 3.00 2.00
21.00 1.00 4.00 4.00 6.00 1.00 4.00
21.00 1.00 2.00 3.00 4.00 2.00 3.00
33.00 1.00 2.00 2.00 6.00 3.00 3.00
21.00 1.00 3.00 5.00 5.00 3.00 3.00
48.00 2.00 3.00 4.00 4.00 1.00 4.00
23.00 2.00 3.00 5.00 7.00 3.00 3.00
29.00 1.00 2.00 3.00 5.00 3.00 3.00
37.00 1.00 3.00 5.00 10.00 3.00 3.00
42.00 2.00 2.00 1.00 5.00 2.00 3.00
45.00 2.00 4.00 4.00 10.00 1.00 2.00
36.00 2.00 3.00 3.00 2.00 4.00 3.00
41.00 1.00 3.00 4.00 5.00 1.00 2.00
29.00 1.00 4.00 4.00 8.00 1.00 2.00
48.00 2.00 4.00 4.00 6.00 2.00 4.00
23.00 2.00 4.00 4.00 8.00 2.00 3.00
21.00 2.00 2.00 4.00 8.00 5.00 4.00
25.00 2.00 4.00 2.00 5.00 5.00 2.00
27.00 1.00 4.00 3.00 10.00 2.00 3.00
23.00 2.00 2.00 1.00 3.00 5.00 4.00
25.00 2.00 3.00 5.00 6.00 4.00 4.00
37.00 1.00 4.00 1.00 9.00 3.00 3.00
41.00 1.00 4.00 1.00 5.00 4.00 2.00
38.00 2.00 2.00 3.00 3.00 2.00 3.00
27.00 1.00 4.00 1.00 5.00 4.00 3.00
42.00 1.00 3.00 2.00 9.00 3.00 3.00
36.00 1.00 2.00 3.00 6.00 5.00 3.00
35.00 2.00 3.00 4.00 3.00 5.00 2.00
40.00 1.00 4.00 4.00 5.00 1.00 4.00
44.00 2.00 3.00 3.00 7.00 1.00 4.00
44.00 1.00 3.00 2.00 6.00 4.00 4.00
32.00 2.00 4.00 4.00 5.00 5.00 2.00
45.00 1.00 3.00 3.00 7.00 3.00 3.00
45.00 2.00 3.00 4.00 4.00 1.00 4.00
36.00 2.00 4.00 5.00 5.00 4.00 2.00
23.00 2.00 4.00 2.00 4.00 2.00 3.00
43.00 2.00 2.00 5.00 6.00 2.00 2.00
24.00 1.00 3.00 5.00 2.00 2.00 2.00
25.00 2.00 3.00 4.00 7.00 4.00 4.00
40.00 1.00 2.00 5.00 4.00 5.00 3.00
26.00 2.00 4.00 3.00 4.00 2.00 3.00
36.00 2.00 4.00 5.00 4.00 3.00 4.00
45.00 1.00 3.00 2.00 2.00 2.00 4.00
47.00 2.00 4.00 3.00 10.00 2.00 3.00
39.00 2.00 4.00 2.00 3.00 2.00 4.00
38.00 1.00 2.00 3.00 6.00 4.00 3.00
34.00 1.00 2.00 5.00 5.00 3.00 3.00
39.00 1.00 2.00 4.00 2.00 5.00 4.00
44.00 1.00 4.00 5.00 7.00 3.00 2.00
24.00 1.00 4.00 3.00 4.00 1.00 3.00
38.00 2.00 4.00 3.00 10.00 1.00 4.00
39.00 2.00 4.00 1.00 4.00 4.00 2.00
26.00 2.00 4.00 3.00 6.00 1.00 3.00
37.00 1.00 3.00 2.00 3.00 5.00 4.00
34.00 1.00 3.00 2.00 9.00 5.00 3.00
48.00 2.00 2.00 1.00 10.00 2.00 3.00
32.00 1.00 4.00 2.00 2.00 2.00 2.00
42.00 1.00 3.00 1.00 8.00 2.00 4.00
47.00 2.00 3.00 1.00 9.00 4.00 2.00
30.00 2.00 3.00 4.00 4.00 1.00 4.00
41.00 2.00 2.00 4.00 6.00 5.00 4.00
26.00 2.00 4.00 4.00 2.00 4.00 3.00
36.00 1.00 2.00 3.00 9.00 5.00 3.00
28.00 1.00 4.00 5.00 9.00 1.00 3.00
37.00 2.00 2.00 3.00 5.00 2.00 2.00
46.00 1.00 2.00 1.00 2.00 5.00 2.00
45.00 1.00 2.00 3.00 10.00 3.00 4.00
20.00 1.00 3.00 3.00 2.00 3.00 2.00
41.00 2.00 4.00 3.00 6.00 4.00 2.00
45.00 1.00 4.00 5.00 5.00 4.00 3.00
27.00 1.00 2.00 5.00 8.00 1.00 4.00
36.00 1.00 3.00 1.00 4.00 4.00 2.00
32.00 1.00 4.00 5.00 7.00 4.00 3.00
25.00 1.00 4.00 2.00 6.00 2.00 2.00
21.00 1.00 2.00 1.00 8.00 3.00 2.00
31.00 1.00 2.00 2.00 3.00 5.00 2.00
23.00 2.00 2.00 4.00 8.00 2.00 3.00
26.00 2.00 4.00 2.00 8.00 4.00 4.00
29.00 2.00 4.00 3.00 3.00 4.00 2.00
42.00 2.00 3.00 1.00 8.00 3.00 4.00
20.00 2.00 3.00 2.00 5.00 1.00 4.00
20.00 2.00 4.00 3.00 8.00 5.00 4.00
21.00 1.00 2.00 1.00 5.00 1.00 3.00
39.00 1.00 4.00 2.00 2.00 2.00 4.00
39.00 1.00 4.00 1.00 4.00 1.00 3.00
37.00 2.00 2.00 5.00 2.00 5.00 2.00
36.00 2.00 4.00 2.00 2.00 4.00 3.00
36.00 1.00 4.00 3.00 4.00 5.00 3.00
46.00 2.00 2.00 1.00 5.00 4.00 4.00
45.00 2.00 3.00 1.00 9.00 5.00 2.00
35.00 1.00 4.00 2.00 3.00 5.00 4.00
27.00 1.00 3.00 4.00 8.00 1.00 3.00
48.00 2.00 3.00 2.00 2.00 2.00 4.00
27.00 1.00 4.00 5.00 10.00 5.00 3.00
31.00 2.00 2.00 5.00 3.00 3.00 2.00
46.00 2.00 4.00 1.00 6.00 3.00 2.00
23.00 1.00 3.00 3.00 6.00 3.00 4.00
23.00 1.00 3.00 3.00 10.00 5.00 4.00
31.00 1.00 3.00 2.00 8.00 3.00 4.00
38.00 1.00 4.00 2.00 5.00 4.00 2.00
47.00 2.00 4.00 5.00 4.00 4.00 4.00
21.00 2.00 3.00 3.00 7.00 1.00 3.00
37.00 2.00 3.00 4.00 7.00 5.00 2.00
31.00 2.00 2.00 4.00 3.00 2.00 4.00
41.00 1.00 3.00 3.00 4.00 2.00 2.00
43.00 2.00 3.00 3.00 10.00 2.00 3.00
43.00 1.00 4.00 1.00 3.00 4.00 2.00
41.00 2.00 3.00 5.00 3.00 1.00 4.00
45.00 1.00 2.00 2.00 9.00 3.00 3.00
31.00 1.00 4.00 3.00 9.00 3.00 2.00
27.00 1.00 3.00 1.00 3.00 2.00 4.00
38.00 2.00 4.00 3.00 4.00 5.00 2.00
29.00 1.00 2.00 4.00 4.00 5.00 2.00
24.00 2.00 3.00 3.00 4.00 3.00 4.00
34.00 2.00 2.00 2.00 7.00 4.00 4.00
25.00 2.00 3.00 1.00 5.00 1.00 2.00
29.00 2.00 3.00 5.00 9.00 1.00 4.00
37.00 2.00 2.00 5.00 4.00 1.00 4.00
34.00 2.00 2.00 4.00 4.00 2.00 3.00
29.00 1.00 4.00 3.00 10.00 5.00 4.00
38.00 2.00 3.00 3.00 5.00 2.00 2.00
47.00 2.00 4.00 5.00 7.00 5.00 4.00
44.00 2.00 4.00 1.00 8.00 1.00 4.00
29.00 2.00 2.00 1.00 5.00 4.00 4.00
21.00 2.00 2.00 4.00 7.00 1.00 2.00
43.00 2.00 3.00 5.00 9.00 2.00 2.00
21.00 2.00 2.00 4.00 6.00 4.00 4.00
40.00 1.00 4.00 2.00 6.00 3.00 4.00
45.00 2.00 3.00 2.00 4.00 1.00 3.00
48.00 2.00 3.00 3.00 2.00 1.00 2.00
26.00 1.00 3.00 5.00 5.00 2.00 2.00
41.00 1.00 4.00 5.00 8.00 5.00 3.00
27.00 2.00 3.00 2.00 3.00 1.00 4.00
32.00 2.00 2.00 4.00 6.00 5.00 2.00
38.00 2.00 3.00 1.00 2.00 4.00 4.00
33.00 2.00 2.00 2.00 4.00 5.00 2.00
23.00 1.00 2.00 3.00 3.00 3.00 3.00
46.00 2.00 2.00 1.00 10.00 5.00 3.00
28.00 2.00 4.00 4.00 8.00 3.00 2.00
46.00 1.00 3.00 3.00 10.00 4.00 4.00
30.00 2.00 3.00 3.00 6.00 5.00 2.00
41.00 2.00 4.00 4.00 10.00 1.00 2.00
31.00 2.00 3.00 3.00 3.00 2.00 2.00
21.00 1.00 4.00 3.00 7.00 5.00 2.00
49.00 2.00 4.00 4.00 6.00 3.00 3.00
28.00 2.00 3.00 3.00 7.00 3.00 2.00
40.00 1.00 4.00 4.00 3.00 5.00 3.00
33.00 2.00 2.00 2.00 9.00 3.00 2.00
22.00 1.00 2.00 3.00 8.00 1.00 2.00
46.00 1.00 4.00 5.00 3.00 3.00 3.00
29.00 1.00 2.00 1.00 2.00 3.00 3.00
20.00 2.00 4.00 2.00 2.00 1.00 2.00
48.00 1.00 4.00 4.00 10.00 5.00 2.00
41.00 2.00 2.00 4.00 6.00 2.00 2.00
41.00 2.00 3.00 3.00 3.00 5.00 2.00
47.00 1.00 4.00 4.00 9.00 3.00 3.00
41.00 1.00 3.00 5.00 5.00 1.00 4.00
23.00 1.00 2.00 3.00 4.00 5.00 3.00
48.00 1.00 2.00 3.00 3.00 3.00 4.00
41.00 1.00 3.00 5.00 8.00 2.00 4.00
32.00 1.00 4.00 5.00 6.00 3.00 3.00
31.00 2.00 4.00 2.00 2.00 1.00 4.00
36.00 2.00 3.00 4.00 3.00 2.00 2.00
29.00 2.00 3.00 2.00 2.00 1.00 2.00
32.00 2.00 3.00 3.00 7.00 3.00 4.00
30.00 1.00 4.00 2.00 4.00 1.00 4.00
20.00 1.00 2.00 1.00 5.00 4.00 3.00
42.00 2.00 2.00 3.00 3.00 3.00 4.00
20.00 2.00 4.00 2.00 7.00 2.00 3.00
44.00 2.00 3.00 4.00 9.00 4.00 2.00
44.00 2.00 3.00 1.00 5.00 4.00 4.00
29.00 2.00 2.00 3.00 8.00 3.00 4.00
22.00 2.00 3.00 3.00 9.00 3.00 2.00
45.00 1.00 3.00 3.00 4.00 5.00 2.00
37.00 2.00 2.00 5.00 10.00 1.00 3.00
25.00 1.00 2.00 2.00 4.00 4.00 4.00
33.00 2.00 2.00 2.00 7.00 3.00 3.00
34.00 2.00 3.00 5.00 4.00 1.00 3.00
28.00 2.00 3.00 3.00 5.00 2.00 2.00
45.00 1.00 2.00 4.00 9.00 2.00 3.00
27.00 1.00 3.00 2.00 4.00 1.00 3.00
43.00 2.00 2.00 2.00 10.00 4.00 3.00
32.00 2.00 2.00 5.00 8.00 3.00 2.00
43.00 2.00 3.00 1.00 3.00 4.00 3.00
24.00 2.00 4.00 2.00 5.00 2.00 4.00
39.00 1.00 2.00 2.00 8.00 4.00 2.00
49.00 2.00 4.00 3.00 3.00 4.00 3.00
25.00 1.00 2.00 5.00 9.00 4.00 3.00
49.00 1.00 2.00 3.00 6.00 2.00 3.00
40.00 1.00 3.00 2.00 10.00 2.00 2.00
39.00 2.00 2.00 3.00 2.00 3.00 3.00
22.00 1.00 3.00 1.00 2.00 1.00 4.00
31.00 2.00 2.00 3.00 3.00 5.00 3.00
44.00 1.00 3.00 3.00 9.00 1.00 2.00
44.00 1.00 3.00 3.00 6.00 3.00 4.00
40.00 1.00 2.00 2.00 9.00 3.00 4.00
35.00 2.00 3.00 2.00 4.00 1.00 2.00
34.00 1.00 3.00 1.00 2.00 2.00 2.00
33.00 2.00 4.00 1.00 6.00 4.00 4.00
45.00 2.00 3.00 2.00 5.00 2.00 3.00
35.00 1.00 4.00 1.00 3.00 3.00 2.00
29.00 1.00 2.00 4.00 7.00 2.00 4.00
42.00 2.00 2.00 2.00 5.00 3.00 4.00
32.00 2.00 3.00 3.00 9.00 5.00 4.00
40.00 2.00 3.00 3.00 4.00 5.00 3.00
47.00 1.00 3.00 5.00 5.00 1.00 3.00
25.00 1.00 4.00 2.00 2.00 4.00 2.00
29.00 1.00 2.00 2.00 5.00 1.00 2.00
22.00 1.00 2.00 3.00 5.00 5.00 2.00
27.00 2.00 4.00 1.00 5.00 1.00 3.00
29.00 1.00 2.00 1.00 2.00 1.00 3.00
21.00 2.00 2.00 2.00 6.00 2.00 2.00
20.00 1.00 4.00 2.00 6.00 2.00 4.00
47.00 2.00 2.00 3.00 4.00 4.00 3.00
33.00 2.00 4.00 2.00 2.00 1.00 4.00
20.00 1.00 4.00 1.00 9.00 5.00 4.00
44.00 2.00 2.00 2.00 8.00 3.00 2.00
25.00 2.00 3.00 5.00 4.00 4.00 3.00
35.00 2.00 4.00 3.00 9.00 3.00 3.00
38.00 1.00 3.00 2.00 9.00 2.00 3.00
32.00 1.00 3.00 4.00 3.00 5.00 2.00
47.00 2.00 3.00 5.00 7.00 4.00 4.00
47.00 2.00 3.00 4.00 3.00 2.00 4.00
32.00 1.00 4.00 1.00 4.00 1.00 2.00
46.00 1.00 4.00 2.00 4.00 1.00 3.00
38.00 1.00 4.00 2.00 8.00 2.00 4.00
21.00 2.00 3.00 3.00 6.00 5.00 4.00

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