The owner of a large car dealership believes that the financ

The owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership. The dealership has historically had 800 customers per day. The owner takes a sample of 100 days and finds the average number of customers visiting the dealership per day was 750. Assume that the population standard deviation is 350. Refer to Exhibit 9-2. The population parameter to be tested is

Solution

The owner is concerned about THE NUMBER OF CUSTOMERS visiting his dealership.

Thus, the population parameter to be tested is

OPTION A: The mean number of customers visiting the dealership per day [ANSWER, A]