A researcher who is evaluating the significance of a multiple regression equation with two predictor variables obtains an F-ratio with df = 2,24.How many individuals were needed to produce the sample data used to find the regression equation?
A)24
B)25
C)26
D)27

Question

A researcher who is evaluating the significance of a multiple regression equation with two predictor variables obtains an F-ratio with df = 2,24.How many individuals were needed to produce the sample data used to find the regression equation?​
A)24​
B)​25
C)​26
D)​27

Quizplus · Accepted Answer

The degrees of freedom for the F-ratio in a regression with two predictors is df = (k, n-k-1), where k is the number of predictors and n is the sample size. Here, df = (2, 24), so n - 2 - 1 = 24, which means n = 27.

A Researcher Who Is Evaluating the Significance of a Multiple