A Confidence Interval (And P-Value) Associated with a Parameter (E

question 15

Multiple Choice

A confidence interval (and p-value) associated with a parameter (e.g., the mean, or a b in regression) assumes:

• A)The residuals are normally distributed.
• B)The sampling distribution of the parameter estimate is normal.
• C)The data are normally distributed.
• D)The data have heterogeneity of variance.

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Definitions:

F Ratio

The ratio of variance between groups to variance within groups in an ANOVA test, used to determine if there are significant differences between groups.

Variability

The measure of how much the scores in a data set differ from each other and from the mean.

Equation Interpretation

The process of explaining the meaning of a mathematical equation, including how variables and constants represent real-world quantities and relationships.

F Value

A statistic obtained in analysis of variance (ANOVA) testing, used to determine whether the means of several groups are equal or show significant differences.