TABLE 12-14 A Perfume Manufacturer Is Trying to Choose Between 2 Magazine

question 147

Short Answer

TABLE 12-14
A perfume manufacturer is trying to choose between 2 magazine advertising layouts.An expensive layout would include a small package of the perfume.A cheaper layout would include a "scratch-and-sniff" sample of the product.The manufacturer would use the more expensive layout only if there is evidence that it would lead to a higher approval rate.The manufacturer presents the more expensive layout to 4 groups and determines the approval rating for each group.He presents the "scratch-and-sniff" layout to 5 groups and again determines the approval rating of the perfume for each group.The data are given below.Use this to test the appropriate hypotheses with the Wilcoxon Rank Sum Test with a level of significance of 0.05.
-Referring to Table 12-14,the calculated value of the test statistic is ________.

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Definitions:

Widely Held Beliefs

Opinions or convictions that are commonly accepted by a large number of people within a society.

Racial Prejudice

Negative attitudes or beliefs held toward individuals or groups based on their race or ethnicity.

Egocentrism

The inability to differentiate between self and other, often resulting in an individual perceiving, interpreting, and judging the world solely from their own perspective.

Defensive Attribution

A cognitive bias where an individual attributes causes for events in ways that defend against feelings of vulnerability or mortality.