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ProbabilityQ&A Library. A stationary shop would like to estimate the average retail value of greeting cards that it has in its inventory. A random sample of 20 greeting cards indicated an average value of Rs.167 and a standard deviation of Rs.32. Set up a 95% confidence interval estimate of all greeting cards that are in its inventory.Start your trial now! First week only $4.99!*arrow_forward*

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. A stationary shop would like to estimate the average retail value of greeting cards that it has in its inventory. A random sample of 20 greeting cards indicated an average value of Rs.167 and a standard deviation of Rs.32. Set up a 95% confidence interval estimate of all greeting cards that are in its inventory.

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