Previous experience shows the variance of a given process to be 14. Researchers are testing to determine
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Previous experience shows the variance of a given process to be 14. Researchers are testing to determine whether this value has changed. They gather the following dozen measurements of the process. Use these data and α = .05 to test the null hypothesis about the variance. Assume the measurements are normallydistributed.
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H 0 2 14 H 1 2 14 s 2 x i x 2 n1 n 12 s 2 30083 use Excel function VARSselect data Test st...View the full answer
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Related Book For
Business Statistics for Contemporary Decision Making
ISBN: 978-0470910184
6th Edition
Authors: Ken Black
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