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The recommended retail price of a brand of designer jeans is $150. The price of the jeans in a sample of 138 retailers is
The recommended retail price of a brand of designer jeans is $150. The price of the jeans in a sample of 138 retailers is on average $141 with a sample standard deviation of 4. Compute a 95% confidence interval. We have 95% confidence that the interval $140.33
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