Does fibrolytic enzyme level in feedlot cattle affect cattle weight gain, on average? Researchers randomly assigned 20 feedlot cattle to four groups, with each group being fed a diet containing a different enzyme level. Cattle weight gain (in kilograms) was recorded over the time of the study. There was no obvious deviation from Normality for these data. The findings are summarized below:
$$\begin{array} { | l | l | l | l | }
\hline \text { Enzyme level } & n & \text { mean } & \text { std. dev. } \
\hline \text { None } & 5 & 51.8 & 4.9 \
\hline \text { Low } & 5 & 55.0 & 7.8 \
\hline \text { Medium } & 5 & 67.4 & 9.6 \
\hline \text { High } & 5 & 48.8 & 7.3 \
\hline
\end{array}$$ What is the alternative hypothesis for the appropriate ANOVA?

Question

Does fibrolytic enzyme level in feedlot cattle affect cattle weight gain, on average? Researchers randomly assigned 20 feedlot cattle to four groups, with each group being fed a diet containing a different enzyme level. Cattle weight gain (in kilograms) was recorded over the time of the study. There was no obvious deviation from Normality for these data. The findings are summarized below:
$$\begin{array} { | l | l | l | l | } 
\hline \text { Enzyme level } & n & \text { mean } & \text { std. dev. } \
\hline \text { None } & 5 & 51.8 & 4.9 \
\hline \text { Low } & 5 & 55.0 & 7.8 \
\hline \text { Medium } & 5 & 67.4 & 9.6 \
\hline \text { High } & 5 & 48.8 & 7.3 \
\hline
\end{array}$$ What is the alternative hypothesis for the appropriate ANOVA?

Quizplus · Accepted Answer

The alternative hypothesis for an ANOVA test, when comparing means across more than two groups, is that at least one group mean is different from the others. This does not specify how the means are different or which specific groups differ, only that not all group means are the same.

Does Fibrolytic Enzyme Level in Feedlot Cattle Affect Cattle Weight