A Pet Trainer Wants to Test the Effects of "Treats

Multiple Choice

A pet trainer wants to test the effects of "treats" and "voice tone" on the speed with which dogs are trained to roll over.For "treats," the trainer used pieces of hot dogs, biscuits, and bacon flavored treats.For "voice tone," the trainer used sing-song, high pitched, and low pitched.Six dogs were randomly assigned to each of the nine cells and the analysis produced the following ANOVA table. $$\begin{array} { | c | c | c | c | c | } \hline \text { Source of Variation } & \text { SS } & \mathrm { df } & \mathrm { Ms } & F \\\hline \text { Rows (treats) } & 3.5926 & 2 & 1.79296 & 0.27 \\\hline \text { Colurun (voice tone) } & 14.8148 & 2 & 7.40741 & 1.11 \\\hline \text { Irteraction } & 19.1852 & 4 & 4.79296 & 0.72 \\\hline\end{array}$$ Using $\alpha$ = .05, the appropriate decision for "interaction" effect is that _____________.

A) a significant interaction is evident and possible to examine the two primary effects
B) no significant interaction is evident and not possible to examine the two primary effects
C) no significant interaction, so more analysis is needed
D) reject the null hypothesis $\mu$ ₁ $\neq$ $\mu$ ₂
E) no significant interaction is evident and possible to examine the two primary effects