Which of the Following Is the Numerator of the Test

question 67

Multiple Choice

Which of the following is the numerator of the test statistic for the related-samples t test?

• A) the sum of the difference scores for each participant
• B) the value of the test statistic plus the degrees of freedom
• C) the mean difference observed minus the mean difference stated in a null hypothesis
• D) estimated standard error for difference scores

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Definitions:

Variance

A measure of the dispersion of a set of data points, calculated as the average squared deviation from the mean of the data.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the data points are.

Range

The difference between the highest and lowest values in a dataset, indicating the spread of the data.

Variability

A statistical measure that describes the dispersion or spread of data points in a data set.