Instruction 19-3
a Perfume Manufacturer Is Trying to Choose Between $\begin{array}{cc}\text { Padkage } & \text { Scratch } \\\hline 52 & 37 \\68 & 43 \\43 & 53 \\48 & 39 \\56 & 47\end{array}$

question 47

Short Answer

Instruction 19-3
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.
$\begin{array}{cc}\text { Padkage } & \text { Scratch } \\\hline 52 & 37 \\68 & 43 \\43 & 53 \\48 & 39 \\56 & 47\end{array}$

-Referring to Instruction 19-3,which pair(s)of observations has a negative signed rank?

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Definitions:

Emotional Abuse

A form of abuse characterized by a person subjecting or exposing another to behavior that can result in psychological trauma, including anxiety, chronic depression, or post-traumatic stress disorder.

Nurturance

The care or encouragement given towards promoting the growth or development of someone or something.

Emotional Support

Assistance provided by expressing love, care, empathy, and encouragement to help manage stress and improve well-being.

Difficult Children

Children who exhibit challenging behaviors more intensely and frequently than typical children, often due to temperament, environmental, or biological factors.