Provide an appropriate response.
-Suppose that you wish to obtain a confidence interval for a population mean. Under the conditions described below, should you use the z-interval procedure, the t-interval procedure, or neither?
- The population standard deviation is unknown.
- The data contain outliers.
- The sample size is small.

Question

Quizplus · Accepted Answer

Given the conditions: the population standard deviation is unknown, the presence of outliers, and a small sample size, neither the z-interval nor the t-interval procedure is appropriate. The t-interval procedure typically requires the population standard deviation to be unknown and the sample to be approximately normally distributed, which might not hold true with outliers and a small sample size.

Provide an Appropriate Response