The formula for a confidence interval for the population mean is based on the rule for sample means, which has assumptions that need to be met.What are those assumptions? (Hint: there are different assumptions depending on whether or not the population is bell-shaped.)

Question

Quizplus · Accepted Answer

The Answer is 1) if the population is bell-shaped, any size random sample can be taken
2) if the population is not bell-shaped, a large enough sample must be taken (at least 30 measurements).

The Formula for a Confidence Interval for the Population Mean