Rivet holes are punched in steel beams. To erisure that
Chapter , Problem 6.71(choose chapter or problem)
Rivet holes are punched in steel beams. To erisure that the rivets will fit and that the joint will have adequate strength, it is necessary to control the standard deviation of the diameter, and measurements are made periodically. Ten measurements are made of nominally linch-diameter holes, and the standard deviation is found to be 0.002 inches. What is the 95% confidence interval on the standard deviation?
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