Perform a Kruskal-Wallis test using the critical-value approach.
-The table below shows the lifetimes (in hours)of random samples of light bulbs of three different brands. At the 0.01 significance level, do the data provide sufficient evidence to conclude that a difference exists between the three population means? $$\begin{array} { l | l | l } \text { Brand A } & \text { Brand B } & \text { Brand C } \ \hline 190 & 182 & 203 \ 220 & 170 & 210 \ 230 & 203 & 199 \ 215 & 175 & 200 \ 224 & 178 & 196 \ 231 & 181 & 197 \end{array}$$

Question

Perform a Kruskal-Wallis test using the critical-value approach.
-The table below shows the lifetimes (in hours)of random samples of light bulbs of three different brands. At the 0.01 significance level, do the data provide sufficient evidence to conclude that a difference exists between the three population means? $$\begin{array} { l | l | l }  \text { Brand A } & \text { Brand B } & \text { Brand C } \ \hline 190 & 182 & 203 \ 220 & 170 & 210 \ 230 & 203 & 199 \ 215 & 175 & 200 \ 224 & 178 & 196 \ 231 & 181 & 197 \end{array}$$

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The Answer of Perform a Kruskal-Wallis test using the critical-value approach.
-The table below shows the lifetimes (in hours)of random samples of light bulbs of three different brands. At the 0.01 significance level, do the data provide sufficient evidence to conclude that a difference exists between the three population means? $$\begin{array} { l | l | l }  \text { Brand A } & \text { Brand B } & \text { Brand C } \ \hline 190 & 182 & 203 \ 220 & 170 & 210 \ 230 & 203 & 199 \ 215 & 175 & 200 \ 224 & 178 & 196 \ 231 & 181 & 197 \end{array}$$

Perform a Kruskal-Wallis Test Using the Critical-Value Approach