Use the Following Information for Questions:
a Safety Officer $\mu$

Multiple Choice

Use the following information for questions:
A safety officer wants to prove that $\mu$ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed.
-What are the appropriate null and alternative hypotheses?

A) H₀: $\mu$ = 25 and H_a: $\mu$ < 25
B) H₀: $\mu$ = 25 and H_a: $\mu$ >25.
C) H₀: $\mu$ = 25 and H_a: $\mu$ $\neq$ 25.
D) H₀: $\mu$ $\neq$ 25 and H_a: $\mu$ = 25.