Question

Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of n = 5. 1, 2, 3, 4, and 30 In the given data, replace the value 30 with 5 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean, using the formula or technology. SHs(Round to two decimal places as needed.) In the given data, replace the value 30 with 5, Find a 95% confidence interval for the population mean, using the formula or technology. De μ sL] (Round to two decimal places as needed.) Using the results from the previous two steps, what is the effect of an outlier (that is, an extreme value) on the confidence interval, in general? OA. The presence of an outlier in the original data increases the value of the sample mean and greatly inflates the sample standard deviation, widening the confidence interval. O B. The presence of an outlier in the original data increases the value of the sample mean and greatly decreases the sample standard deviation, narrowing the confidence interval ○ C he presence o an ou er in te original data decreases he value o he sample mean and great inflates he sample standard deviation widenin the confidence interva 。D. he presence o an outlier in he original data decreases he value o he sample mean and greatly decreases the sam esta ar dev a on namo ng he confidence interval

Answer 1