Question: Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample of size n -

Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample of size n - 1:
1 2 3 4 5 6 20
Change the number 20 to 7 and recalculate the confidence interval. Using these results, describe the effect of an outlier (i.e., an extreme value) on the confidence interval.

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