You need to estimate the mean christmas sales across a large

Reference no: EM13240547

You need to estimate the mean Christmas sales across a large chain of jewelry stores. You want to estimate this mean value to within $100 with 99% confidence. Previous studies indicate that the standard deviation for sales across the stores has been $450. How many randomly selected stores from the chain should your sample contain to meet this desired level of accuracy?

Reference no: EM13240547

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