Chi-square test for independence of attributes.
Negative appeal is recognized as an effective method of persuasion in advertising. A study in The Journal of Advertising reported the results of a content analysis of guilt and fear advertisements in 24 magazines. The number of ads with guilt and fear appeals that appeared in particular magazine type follows:
Statgraphics or Excel is recommended for this problem.
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Type of Appeal
|
|
Magazine Type
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Number of Ads with Guilt Appeals
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Number of Ads with Fear Appeals
|
|
|
News and opinion
|
20
|
10
|
|
|
General editorial
|
15
|
11
|
|
|
Family-oriented
|
30
|
19
|
|
|
Business/financial
|
22
|
17
|
|
|
Female-oriented
|
16
|
14
|
|
|
African-American
|
12
|
15
|
|
Use the Chi-square test of independence with a .01 level of significance to establish whether appeal is independent from type.
Compute the value of the X2 test statistic (to 2 decimals).
What is the p-value?
What is your conclusion?