T-Mobile LTE 10:27 AM o 29%D Done 4 of 5 is that t is independent of smoking hab
ID: 2934282 • Letter: T
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T-Mobile LTE 10:27 AM o 29%D Done 4 of 5 is that t is independent of smoking habits. Set = .01. Is there a difference in on-the-job accident oc- currences between smokers and nonsmokers? Explain. 12.20 In the book Essentials of Marketing Research, William R. Dillon, Thomas J. Madden, and Neil A. Firtle discuss the relationship between delivery time and computer-assisted ordering. A sample of 40 firms shows that 16 use computer-assisted ordering, while 24 do not. Furthermore, past data are used to catego- rize each firm's delivery times as below the industry average, equal to the industry average, or above the industry average. The results obtained are given in Table 12.6. DelTime 0 4 ]Explanation / Answer
12.17
Here we have to test the hypothesis that,
H0: wine consumption and a person likes to watch professional tennis on telivison are independent.
H1 : wine consumption and a person likes to watch professional tennis on television are not independent
Assume alpha = level of significance = 0.05
Now here test statistic follows Chi square distribution with (R-1)(C-1) degrees of freedom.
we can test this hypothesis in minitab.
Steps :
Enter data into minitab sheet --> Stat --> tables --> Chi square test (two way table in worksheet) --> columns containing the table --> select data columns --> ok
When we perform these steps then we get,
Test statistic = 16.667
P-value = 0.000
P-value < alpha
Reject H0 at 5% level of significance.
Conclusion : the two variables are dependent.
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