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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.

Type of Appeal

Magazine Type

Number of Ads with Guilt Appeals

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?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922945

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