A standard deviation of 0042 inches find the bounds of a

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Reference no: EM13633979

Measurements of the diameters of a random sample of 200 ball bearings made by a certain machine during one week showed a mean of 0.824 inches and a standard deviation of 0.042 inches. Find the bounds of a 98% confidence interval for a mean diameter of all the bearings.

Reference no: EM13633979

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