In 6.74, if we want to increase the confidence level to
Chapter , Problem 6.75(choose chapter or problem)
In 6.74, if we want to increase the confidence level to 99%, (a) determine the confidence interval on the variance of the diameter along the shaft, based on 10 measurements with the same standard deviation. (b) is the shaft acceptable to the customer? (That is, is the variance in diameter along the shaft below 0.0004 mm2?)
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