SCENARIO 12-21 A Perfume Manufacturer Is Trying to Choose Between 2 Magazine

question 11

Multiple Choice

SCENARIO 12-21
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 both layouts to 5 groups and determines the approval rating from each group on both layouts.The data are given below.Use this to test whether the median difference in approval rating is different from zero in favor of the more expensive layout with a level of significance of 0.05.

-Referring to Scenario 12-21,what is the right test to use?

• A)Wilcoxon rank sum test for difference in median
• B)Wilcoxon rank sum test for median difference
• C)Wilcoxon signed rank test for difference in median
• D)Wilcoxon signed rank test for median difference

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Definitions:

Chronic Obstructive Pulmonary Disease

A group of lung conditions that cause breathing difficulties, including emphysema and chronic bronchitis, often due to long-term exposure to harmful substances.

Bronchial Constriction

The narrowing of the bronchi in the lungs due to the tightening of surrounding smooth muscle, often as a response to asthma or other respiratory conditions.

Pulmonary Emphysema

A chronic respiratory disease characterized by the destruction of the air sacs in the lungs, leading to difficulty in breathing.

Cigarette Smoking

The act of inhaling and exhaling the smoke produced by burning tobacco contained in cigarettes, which is harmful to health.