In Order to Test for the Significance of a Regression

question 104

Multiple Choice

In order to test for the significance of a regression model involving 8 independent variables and 121 observations, the numerator and denominator degrees of freedom (respectively) for the critical value of F are

• A)8 and 121
• B)7 and 120
• C)8 and 112
• D)7 and 112

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Definitions:

Significance Level

The threshold below which the p-value of test results must fall for the results to be considered statistically significant, typically denoted by alpha (α).

Normal Populations

Populations that follow a normal distribution, characterized by symmetrical bell-shaped curves where mean, median, and mode are equal.

Equal-variance T-test

A statistical test used to compare the means of two groups under the assumption that both groups have the same variance.

Population Variances

A measure of the spread or dispersion within a dataset, representing the average of the squared differences from the mean of the population.