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

question 169

Short Answer

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,which pair(s)of observations has a negative signed rank?

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Definitions:

Skeletal Muscles

Muscles attached to bones that are responsible for movement, posture, and stability, known for being under voluntary control.

Characteristic

A distinguishing trait, quality, or property of an individual or thing.

Muscle Contraction

The process in which muscle fibers shorten, generating force and movement, often through interactions between actin and myosin proteins.

Stimulation

The action of applying a stimulus to a nerve, muscle, or psychological state, thereby inducing a specific response.