The recommended retail price of a brand of designer jeans is $150. A retail analyst sampled 16 retail stores and found the average price was $141 with a standard deviation of $4. If this is a 'random' sample and the prices can be assumed to be normally distributed, construct a 95% confidence interval for the average sale price.
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Home » Business » The recommended retail price of a brand of designer jeans is $150. A retail analyst sampled 16 retail stores and found the average price was $141 with a standard deviation of $4.