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I'm not sure how to find confidence intervals. The question is: A sampling of 10 selling prices for a certain model car yields a sample

I'm not sure how to find confidence intervals.

The question is: A sampling of 10 selling prices for a certain model car yields a sample mean of x_bar=$15,127 and sample standard deviation s=$502. Give a 90% confidence interval for the population mean, interpret your result.

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