Test the claim that the samples come from populations with the same mean. Assume that the populations are normally distributed with the same variance.
-Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. $\begin{array} { l }
\text { Model A}&\text { Model B}&\text { Model C}&\text { Model D }\\hline
23&28&30&25\25&26&28&26\24&29&32&25\26&30&27&28
\end{array}$
Test the claim that the four different models have the same population mean. Use a significance level of 0.05.

Question

Test the claim that the samples come from populations with the same mean. Assume that the populations are normally distributed with the same variance.
-Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. $\begin{array} { l  } 
\text { Model A}&\text {  Model B}&\text {  Model C}&\text {  Model D }\\hline
23&28&30&25\25&26&28&26\24&29&32&25\26&30&27&28
\end{array}$
 Test the claim that the four different models have the same population mean. Use a significance level of 0.05.

Quizplus · Accepted Answer

The Answer of Test the claim that the samples come from populations with the same mean. Assume that the populations are normally distributed with the same variance.
-Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. $\begin{array} { l  } 
\text { Model A}&\text {  Model B}&\text {  Model C}&\text {  Model D }\\hline
23&28&30&25\25&26&28&26\24&29&32&25\26&30&27&28
\end{array}$
 Test the claim that the four different models have the same population mean. Use a significance level of 0.05.

Test the Claim That the Samples Come from Populations with the Same