Managers for a company that produces a weight loss product claim that the median weight lost over six weeks for people who use this product will be at least 20 pounds.The following data were collected from a sample of nine people who used the product. In order to test the manager's claim,they will need to assume that the population is normally distributed.

Question

Managers for a company that produces a weight loss product claim that the median weight lost over six weeks for people who use this product will be at least 20 pounds.The following data were collected from a sample of nine people who used the product.  In order to test the manager's claim,they will need to assume that the population is normally distributed.

Quizplus · Accepted Answer

The question does not provide any information about whether the population is normally distributed or not. Therefore, it is not appropriate to assume that the population is normally distributed. The use of the normal distribution assumption in hypothesis testing relies on either a large sample size or the Central Limit Theorem.

Managers for a Company That Produces a Weight Loss Product