jawonelliott2130 jawonelliott2130

23-05-2023
Mathematics

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A marketing researcher is interested in estimating the average amount spent by Dalma Mall shoppers. A random sample of 46 shoppers was obtained while leaving the mall and were asked about the amount of money they spent. The sample mean and standard deviation were used in constructing a 90% confidence interval. Which confidence interval would be appropriate for this problem?
t-interval
Either z or t-interval
Neither z nor t-interval
z-interval

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