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Calculate the upper confidence limit

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Reference no: EM132850336

A random sample of 50 roundtrip flights between Philadelphia and Dallas has an average airfare of $470.40 with a sample standard deviation of $58.70. Compute the 95% confidence interval around this sample mean. Round your answer to 3 decimals if needed.

We would like to construct a 90% confidence interval for the mean, based on a sample of 35 observations. The sample standard deviation is 4.1 and the sample mean is 16. Calculate the upper confidence limit. Round your answer to 3 decimals if needed.

Reference no: EM132850336

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