3. A marketing researcher wants to estimate the mean amount spent ($) on Amazon.com by Amazon Prime member shoppers. Suppose a random sample of 100 Amazon Prime member shoppers who recently made a purchase on Amazon.com yielded a mean of $1,500 and a standard deviation of $200. a. Construct a 95% confidence interval estimate for the mean spending for all Amazon Prime member shoppers. b. Interpret the interval constructed in (a).
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marketing researcher wants to estimate the mean amount spent ($) on Amazon.com by Amazon Prime member shoppers. Suppose a random sample of 100 Amazon Prime member shoppers who recently made a purchase on Amazon.com yielded a mean of $1,500 and a standard deviation of $200. a. Construct a 95% confidence interval estimate for the mean spending for all Amazon Prime member shoppers. b. Interpret the interval constructed .
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