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Inches and a standard deviation

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Reference no: EM131115639

Use a normal distribution or a t-distribution to find a  95% C.I. for the following: 

In a random sample of 70 bolts with a sample mean length of 1.25 inches and a standard deviation of .01 inches.  What is the CI?

Reference no: EM131115639

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Inches and a standard deviation : In a random sample of 70 bolts with a sample mean length of 1.25 inches and a standard deviation of .01 inches.  What is the CI?
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