For each of the following situations, calculate a (95 %) confidence interval for the mean ( (sigma)
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For each of the following situations, calculate a \(95 \%\) confidence interval for the mean ( \(\sigma\) not known), beginning with the step, "Calculate the degrees of freedom ( \(d f\) ) and identify the critical value of \(t\). "
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Related Book For 
Fundamental Statistics For The Social And Behavioral Sciences
ISBN: 9781483318790
1st Edition
Authors: Howard T. Tokunaga
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