SOLUTION: how many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athetic footwear? We want 99% confidence that the sample means is within $200 of
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Question 545371: how many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athetic footwear? We want 99% confidence that the sample means is within $200 of the population , and the population standard devation is known to be $1100 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! how many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athetic footwear? We want 99% confidence that the sample means is within $200 of the population , and the population standard devation is known to be $1100
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n = [z*s/E]^2 = [2.3263*1100/200]^2 = 164 when rounded up
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Cheers,
Stan H.
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