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

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Test the claim that the samples come from populations with the same mean. Assume that the populations are normally distributed with the same variance.  Exercise A  Exercise B  Exercise C2.55.84.38.84.96.27.31.15.89.87.88.15.11.27.9\begin{array} { c c c } \text { Exercise A } & \text { Exercise B } & \text { Exercise } \mathbf { C } \\\hline 2.5 & 5.8 & 4.3 \\8.8 & 4.9 & 6.2 \\7.3 & 1.1 & 5.8 \\9.8 & 7.8 & 8.1 \\5.1 & 1.2 & 7.9\end{array}
At the 1% significance level, does it appear that a difference exists in the true mean weight loss produced by the three exercise programs?

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