Shopping Survey Arandom sample of 49 shoppers showed that
Chapter 7, Problem 4(choose chapter or problem)
Shopping Survey Arandom sample of 49 shoppers showed that they spend an average of $23.45 per visit at the Saturday Mornings Bookstore. The standard deviation of the population is $2.80. Find a point estimate of the population mean. Find the 90% confidence interval of the true mean. (71) $23.45; $22.79 _ m _ $24.11
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