Question: Previous experience shows the variance of a given process to be 14.Researchers is testing to determine whether this value has changed. They gather the following

Previous experience shows the variance of a given process to be 14.Researchers is testing to determine whether this value has changed. They gather the following dozen measurements of the process. Use these data and Î± = .05 to test the null hypothesis about the variance. Assume the measurements are normallydistributed.

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