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. The population parameter to be tested is ________.
A) the average number of 750 customers per day
B) the proportion of customers visiting the dealership per day
C) the mean number of customers visiting the dealership per day
D) the standard deviation of the number of customers visiting the dealership per day

Question

Quizplus · Accepted Answer

The population parameter being tested is the mean number of customers visiting the dealership per day. This is the central tendency that is being compared to the sample mean of 750 customers per day. The other answer choices are not relevant to this test as they do not relate to the population parameter being compared.

The Owner of a Large Car Dealership Believes That the Financial