Confidence interval and sample size calculation problems
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By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.22 seconds.
Answer each of the following (show all work):
(A) How many measurements should be made in order to be 98% certain that the maximum error of estimation will not exceed 0.5 seconds?
(B) What sample size is required for a maximum error of 1.5 seconds?
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Solution Summary
This solution provides a step by step method for computing the confidence interval and sample size calculation.
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