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Suppose that the wait times for patients in an emergency room are normally distributed with an...

Suppose that the wait times for patients in an emergency room are normally distributed with an unknown mean and standard deviation. A random sample of 18 patients is taken and gives a sample mean of 25 minutes and a sample standard deviation of 2 minutes.

As found above, the EBM, margin of error, for a 95% confidence interval estimate for the population mean using the Student's t-distribution is 0.99.

Find a 95% confidence interval estimate for the population mean using the Student's t-distribution.

  • Round the final answers to two decimal places.
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TOPIC:Confidence interval for the population mean.

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