Dover Motors Is a Car Dealership That Sells New and Used

question 103

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

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Definitions:

Identical Twins

Twins that develop from a single zygote splitting early in development, sharing 100% of their DNA.

Dizygotic

Pertaining to twins that develop from two different eggs fertilized by two different sperms, also known as fraternal twins.

Pluripotent

In development, a cell or group of cells that have not yet become fixed or determined as to what specific tissues they are going to become.

Totipotent

Describes cells with the capability to differentiate into any type of cell in an organism, including the development of a complete organism.