Dover Motors Is a Car Dealership That Sells New and Used

Multiple Choice

Dover Motors is a car dealership that sells new and used cars. Suppose they sold 140 used cars during the most recent quarter. The average selling price was $10,325 with a standard deviation of $2,880. A random sample of 60 used cars from this population was selected. What is the probability that the sample mean exceeds $10,000?

A) 0.9115
B) 0.8749
C) 0.5987
D) 0.6736