Random samples were selected from three populations.The data obtained are shown below.Please note that the sample sizes are not equal.
a.
Compute the overall mean .
b.
At α = .01 using the critical value and p-value approaches, test to see if there is a significant difference among the treatment means.

Question

Random samples were selected from three populations.The data obtained are shown below.Please note that the sample sizes are not equal.  ​ 
a.
Compute the overall mean  . 
b.
At α = .01 using the critical value and p-value approaches, test to see if there is a significant difference among the treatment means.

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The Answer of Random samples were selected from three populations.The data obtained are shown below.Please note that the sample sizes are not equal.  ​ 
a.
Compute the overall mean  . 
b.
At α = .01 using the critical value and p-value approaches, test to see if there is a significant difference among the treatment means.

Random Samples Were Selected from Three Populations