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 760 customers per day. The owner takes a sample of 100 days and finds the average number of customers visiting the dealership per day was 710. Assume that the population standard deviation is 360. The value of the test statistic is __________.

Multiple Choice

z = 1.389

z = 1.389

t₉₉ = 1.389

t₉₉ = 1.389