Question

Assuming that the population is normally distributed, construct a 90% confidence interval for the population mean, based on the following sample size of n=5. 1, 2, 3, 4, and 28 D In the given data, replace the value 28 with 5 and recalculate the confidence interval. Using these results, describe the effect of an outier (that is, an extreme value) on the confidence interval, in general. Find a 90% confidence interval fe the population mean, using the formula or technology. Osus (Round to two decimal places as needed.) In the given data, replace the value 28 with 5. Find a 90% confidence interval for the population mean, using the formula or technology Osus (Round to two decimal places as needed.) Using the results from the previous two steps, what is the effect of an outier (that is, an extreme value) on the confidence interval, in general? A. The presence of an outier in the original data increases the value of the sample mean and greatly infates the sample standard deviation, widening the confidence interval OB. The presence of an outier in the original data decreases the value of the sample mean and greaty decreases the sample standard deviation, namowing the confidence interval C. The presence of an outlier in the original data increases the value of the sample mean and greatly decreases the sample standard deviation, narowing the confidence interval OD. The presence of an otier in the original data decreases the value of the sample mean and greatly infates the sample standard deviation, widening the confidence interval Click to select your answweris).