Instruction 19-5
a Perfume Manufacturer Is Trying to Choose Between $\begin{array} { c c } \text { Package } & \text { Scratch } \\\hline 52 & 37 \\68 & 43 \\43 & 53 \\48 & 39 \\56 & 47\end{array}$

question 26

Multiple Choice

Instruction 19-5
A perfume manufacturer is trying to choose between two 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 five 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 favour of the more expensive layout with a level of significance of 0.05.
$\begin{array} { c c } \text { Package } & \text { Scratch } \\\hline 52 & 37 \\68 & 43 \\43 & 53 \\48 & 39 \\56 & 47\end{array}$
-Referring to Instruction 19-5,what is the appropriate test to use?

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

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Definitions:

Mate with Multiple

A reproductive strategy in which an organism has more than one mate during a breeding season, increasing genetic diversity and potential for survival of offspring.

Life Partner

A companion or partner with whom one shares a long-term committed relationship, encompassing both romantic and non-romantic aspects.

Operational Sex Ratio (OSR)

The ratio of male to female individuals who are available for reproducing at any given time.

Reproductive Traits

Characteristics or features of organisms that are related to or affect reproduction, including mating systems, fertility rates, and offspring development.