Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 8.1 seconds. Suppose that you want to test the claim that the average time to accelerate from 0 to 60 miles per hour is less than 8.1 seconds. What would you use for the alternative hypothesis? A)H₁ : $\mu$

Question

Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 8.1 seconds. Suppose that you want to test the claim that the average time to accelerate from 0 to 60 miles per hour is less than 8.1 seconds. What would you use for the alternative hypothesis? A)H₁ : $\mu$<8.1 seconds B)H₁ : $\mu$$\gt$8.1 seconds C)H₁ : $\mu$$\le$8.1 seconds D)H₁ : $\mu$$\ge$8.1 seconds E)H₁ : $\mu$= 8.1 seconds

Quizplus · Accepted Answer

The alternative hypothesis is a statement that contradicts the null hypothesis. Since the claim is that the average time to accelerate from 0 to 60 miles per hour is less than 8.1 seconds, the alternative hypothesis should reflect this claim by stating that the mean time ($\mu$) is less than 8.1 seconds.

Suppose That the Mean Time for a Certain Car to Go