Exhibit 20

question 65

Multiple Choice

Exhibit 20.11.A wine magazine wants to know if chefs can tell the difference between duck liver pate and wet dog food.Eighteen chefs were asked to rate both the pate and dog food on a scale from 1 to 5,with 1 corresponding to "inedible" and 5 to "very tasty".The results are shown in the following table. Refer to Exhibit 20.11.To determine if there are differences in preferences between pate and dog food using the sign test,the competing hypotheses are:

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Definitions:

Intrusive Memories

Unwanted and often distressing memories that suddenly enter consciousness, frequently associated with traumatic events and a symptom of PTSD (Post-Traumatic Stress Disorder).

Unpleasant Emotions

Feelings that are generally negative in nature, such as sadness, anger, or fear, which can affect one's mental state.

Work Load

The amount of work assigned to or expected from a person in a given time period.

Sexual Discrimination

The unfair treatment of individuals based on their sex or gender, often manifesting in the workplace, education, and societal opportunities.