BigShots, Inc.is a specialty e-tailer that operates 87 catalog websites on the Internet.Kevin Conn, Sales Director, feels that the style (color scheme, graphics, fonts, etc.)of a website may affect its sales.He chooses three levels of design style (neon, old world and sophisticated)and randomly assigns six catalog websites to each design style.Analysis of Kevin's data yielded the following ANOVA table. $$\begin{array} { | c | c | c | c | c | }
\hline \text { Source of Variation } & \text { SS } & \text { df } & \text { MS } & F \
\hline \text { Between Groups } & 68102.33 & 2 & 34051.17 & \
\hline \text { Within Groups } & 29177.67 & 15 & 1945.178 & \
\hline \text { Total } & 97280 & 17 & & \
\hline
\end{array}$$ Using $\alpha$ = 0.05, the observed F value is _____________.
A)0.5022
B)0.1333
C)1.9911
D)17.5100
E)22.4567

Question

BigShots, Inc.is a specialty e-tailer that operates 87 catalog websites on the Internet.Kevin Conn, Sales Director, feels that the style (color scheme, graphics, fonts, etc.)of a website may affect its sales.He chooses three levels of design style (neon, old world and sophisticated)and randomly assigns six catalog websites to each design style.Analysis of Kevin's data yielded the following ANOVA table. $$\begin{array} { | c | c | c | c | c | } 
\hline \text { Source of Variation } & \text { SS } & \text { df } & \text { MS } & F \
\hline \text { Between Groups } & 68102.33 & 2 & 34051.17 & \
\hline \text { Within Groups } & 29177.67 & 15 & 1945.178 & \
\hline \text { Total } & 97280 & 17 & & \
\hline
\end{array}$$ Using $\alpha$ = 0.05, the observed F value is _____________.
A)0.5022
B)0.1333
C)1.9911
D)17.5100
E)22.4567

Quizplus · Accepted Answer

The observed F value is calculated by dividing the mean square between groups (MS between) by the mean square within groups (MS within). Thus, F = 34051.17 / 1945.178 = 17.5100.

BigShots, Inc Using α\alphaα = 005, the Observed F Value Is _____________

BigShots, Inc Using $\alpha$ = 005, the Observed F Value Is _____________