# Confidence Interval using T test and outlier

Compute a 95% confidence interval for the population mean, based on the sample 1.5, 1.54, 1.55, 0.09, 0.08, 1.55, 0.07, 0.99, 0.98, 1.12, 1.13, 1.00, 1.56, and 1.53. Change the last number from 1.53 to 50 and recalculate to the confidence interval. Using the results, describe the effect of an outlier or extreme value on the confidence interval.

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#### Solution Summary

This solution is comprised of a detailed explanation of confidence interval using t test. This solution mainly discussed how the confidence interval can be calculated and how it is affected if the data has an outlier. Full interpretation is provided for in the solution.

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