A survey of 50 that the average amount spent on a site was


A survey of 50 that the average amount spent on a site was $11,300 per year (Fortune, March 5, 2011). Assuming a population standard deviation small businesses with Web sites found of $3000, show all the details in constructing a 90% confidence interval for the true population mean amount spent. Nearest 0.01.

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Basic Statistics: A survey of 50 that the average amount spent on a site was
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