Posted by **Vicki** on Wednesday, November 9, 2011 at 10:11pm.

A random sample of greeting cards is a mean value of $2.55 and a standard deviation of $0.44 So construct a 95% confidence interval estimate of the mean value of all cards in the store's inventory. So if the 2500 cards in the inventory then how are the results in assisting the owner to estimate the total value of the inventory?

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