Question: A machine that produces ball bearings is set so that

A machine that produces ball bearings is set so that the average diameter is .50 inch. A sample of 10 ball bearings was measured, with the results shown here. Assuming that the standard deviation is .05 inch can we conclude at the 5% significance level that the mean diameter is not .50inch?

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  • CreatedFebruary 03, 2015
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