Duane Is Interested in Examining Whether There Is a Statistically

question 137

Multiple Choice

Duane is interested in examining whether there is a statistically significant difference between quiz results in the morning compared with the quiz results in the afternoon for the same class. Duane would use _____ to test this research question.

• A) an ANOVA
• B) a chi-square test of independence
• C) a t-test for dependent means
• D) an independent samples t-test

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Definitions:

Confidence Intervals

A selection of values, extracted from a sample, presumed to hold the value of an undisclosed population attribute.

Population Variance

A measure of the spread or dispersion of a set of data values in a population, indicating the average squared deviation from the mean.

Rejection Region

The rejection region is the range of values in hypothesis testing for which the null hypothesis is rejected in favor of the alternative hypothesis.

Population Mean

The average value of a characteristic or measurement across the entire population targeted in a study.