A Positive Relationship Between Swimsuits Purchased and Ice Cream Purchased

question 44

Multiple Choice

A positive relationship between swimsuits purchased and ice cream purchased could be the result of:

• A)reverse causality.
• B)a magnified scale on the swimsuit axis.
• C)a truncation of the ice cream axis.
• D)an omitted variable,such as the external temperature.

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Definitions:

Average Score

The arithmetic mean calculated by dividing the sum of scores by the number of scores.

Correlation

A statistical measure that describes the degree to which two variables move in relation to each other.

Hypothesis

An if–then statement of conjecture that relates variables to one another and is used to reflect the general problem statement or question that is the motivation for asking a research question.

Directional Research Hypothesis

A research hypothesis that posits a difference between groups in one direction.