Find confidence interval for mean price of greeting card


The manager of a gift shop would like to estimate the average retail price of a particular greeting card by its competitors. A random sample of 20 retail stores in a 100 mile radius of the store was selected. The sample mean and standard deviation were $2.05 and $0.40 respectively. Find a 90% confidence interval for the mean price of the greeting card.

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Basic Statistics: Find confidence interval for mean price of greeting card
Reference No:- TGS0105745

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