The thicknesses of 80 randomly selected stainless steel sheets were found to have a standard deviation of 1.37. Construct the 98% confidence interval for the population standard deviation of the thicknesses of all stainless steel sheets in this factory. Round your answers to two decimal places. LOWER ENDPOINT: UPPER ENDPOINT:

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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SECTION 9.4

 

The thicknesses of 80 randomly selected stainless steel sheets were found to have a standard deviation of 1.37. Construct the 98% confidence interval for the population standard deviation of the thicknesses of all stainless steel sheets in this factory. Round your answers to two decimal places.

LOWER ENDPOINT:

UPPER ENDPOINT:

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