Verna Found a Positive Correlation Between Self-Reported Alcohol and Drug

question 79

Multiple Choice

Verna found a positive correlation between self-reported alcohol and drug use and sick days taken in a study of white-collar workers. A graph of her results would show a(n) :

• A)negatively-sloped line
• B)positively-sloped line
• C)horizontal line
• D)U-shaped curve

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Definitions:

Critical Value

A point on a statistical distribution that represents a threshold beyond which an observed test statistic is considered significant.

P-value

The chance of achieving results from a test that are at minimum as critical as what was actually noted, on the condition that the null hypothesis holds.

Treatment Means

The average outcomes or effects of different treatments or conditions in a study.

Overall Mean

The average calculated across all observations in a given dataset.