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29 August, 14:45

Suppose it is desired to estimate the average time a customer spends in Dollar Tree to within 5 minutes at 99% reliability. It is estimated that the standard deviation of the times is 15 minutes. How large a sample should be taken to get the desired interval?

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  1. 29 August, 15:39
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    Im not sure how to explain this but text me so i can fully explain it to where you understand
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