The Owner of a Large Car Dealership Believes That the Financial

Multiple Choice

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.At a 5% significance level,the critical value(s) is(are) ___________.

A) 1.645
B) -1.645
C) -1.96 and 1.96
D) -2.030 and 2.030