A researcher tests three different brands of $2 \%$ milk to see how many grams of fat are in e 8 ounce glass. The results are shown below.
$\begin{array}{ccc}
\hline \text { Brand A } & \text { Brand B } & \text { Brand C } \
\hline 4.72 & 4.68 & 4.74 \
4.70 & 4.71 & 4.72 \
4.68 & 4.72 & 4.75 \
4.75 & 4.70 & 4.73 \
4.71 & 4.73 & 4.74 \
\hline
\end{array}$

What is the critical value for a Kruskal-Wallis test of this data at $\alpha = 0.10$.
A) 6.251
B) 4.605
C) 0.584
D) 0.211

Question

A researcher tests three different brands of $2 \%$ milk to see how many grams of fat are in e 8 ounce glass. The results are shown below.
$\begin{array}{ccc}
\hline \text { Brand A } & \text { Brand B } & \text { Brand C } \
\hline 4.72 & 4.68 & 4.74 \
4.70 & 4.71 & 4.72 \
4.68 & 4.72 & 4.75 \
4.75 & 4.70 & 4.73 \
4.71 & 4.73 & 4.74 \
\hline
\end{array}$

What is the critical value for a Kruskal-Wallis test of this data at $\alpha = 0.10$.
A) 6.251
B) 4.605
C) 0.584
D) 0.211

Quizplus · Accepted Answer

The Kruskal-Wallis test is a non-parametric method for testing whether samples originate from the same distribution. The critical value at $\alpha = 0.10$ for 2 degrees of freedom (since there are 3 groups) is 4.605.

A Researcher Tests Three Different Brands Of 2%2 \%2% Milk to See How Many Grams of Fat Are in to See

A Researcher Tests Three Different Brands Of $2 \%$ Milk to See How Many Grams of Fat Are in to See