How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new
line of athletic footwear? We want 99% confidence that the sample mean is within $200 of the
population mean, and the population standard deviation is known to be $1100.
The sample size needed to be
% confident is at least

How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear We want 99 confidence that the sample mean class=


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