The following ANOVA table is from a multiple regression analysis. $$\begin{array} { | c | c | c | c | c | c | }
\hline \text { Source } & \mathrm { df } & \mathrm { SS } & \mathrm { MS } & F & p \
\hline \text { Repression } & 3 & 1500 & & & \
\hline \text { Error } & 26 & & & & \
\hline \text { Total } & & 2300 & & & \
\hline
\end{array}$$ The sample size for the analysis is __________.
A)30
B)26
C)3
D)29
E)31

Question

The following ANOVA table is from a multiple regression analysis. $$\begin{array} { | c | c | c | c | c | c | } 
\hline \text { Source } & \mathrm { df } & \mathrm { SS } & \mathrm { MS } & F & p \
\hline \text { Repression } & 3 & 1500 & & & \
\hline \text { Error } & 26 & & & & \
\hline \text { Total } & & 2300 & & & \
\hline
\end{array}$$ The sample size for the analysis is __________.
A)30
B)26
C)3
D)29
E)31

Quizplus · Accepted Answer

The sample size for the analysis is found by adding the degrees of freedom (df) for the regression and the error together. Here, df for regression is 3 and df for error is 26, so the total sample size is 3 + 26 = 29. However, since the question asks for the choice number of the correct choice(s) only, and "A" corresponds to the correct answer, the response to the question as formatted should be "A".

The Following ANOVA Table Is from a Multiple Regression Analysis