TABLE 8-1
The managers of a company are worried about the morale of their employees.In order to determine if a problem in this area exists,they decide to evaluate the attitudes of their employees with a standardized test.They select the Fortunato test of job satisfaction,which has a known standard deviation of 24 points.
-True or False: Referring to Table 8-1,this confidence interval is only valid if the scores on the Fortunato test are normally distributed.

Question

Quizplus · Accepted Answer

A confidence interval for the mean can be valid even if the data is not normally distributed, especially with a large sample size, due to the Central Limit Theorem.

TABLE 8-1 The Managers of a Company Are Worried About the Morale