Andy Johnson Mfg., in Orlando, has asked you to check a labor standard prepared by a recently

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Andy Johnson Mfg., in Orlando, has asked you to check a labor standard prepared by a recently terminated analyst. Your first task is to determine the correct sample size. Your accuracy is to be within {5%

and your confidence level at 95%. The standard deviation of the sample is 1.0 and the mean 3.00.

APPROACH c You apply Equation (10-4).

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