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A marketing researcher wants to estimate the mean amount spent ($) on Amazon.com by Amazon Prime member shoppers. Suppose a random sample of 121 Amazon

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A marketing researcher wants to estimate the mean amount spent ($) on Amazon.com by Amazon Prime member shoppers. Suppose a random sample of 121 Amazon Prime member shoppers who recently made a purchase on Amazon.com yielded a mean of $1,600 and a standard deviation of $220. 3) Construct a 95% condence interval estimate for the mean Spending for all Amazon prime member shoppers

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