A time study analyst wants to estimate the number of observations that will be needed to achieve
Question:
A time study analyst wants to estimate the number of observations that will be needed to achieve a specified maximum error, with a confidence of 95.5 percent. A preliminary study yielded a mean of 5.2 minutes and a standard deviation of 1.1 minutes. Determine the total number of observations needed for the following two cases.
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a A maximum error of 6 percent of the sample mean ...View the full answer
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Muhammad Umair
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