Suppose that the mean time for a certain car to go from 0 to

Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 8.8 seconds. Suppose that you want to set up a statistical test to challenge the claim of 8.8 seconds. What would you use for the null hypothesis?

Select one:

a. H₀ : m = 8.8 seconds

b. H₀ : m < 8.8 seconds

c. H₀ : m > 8.8 seconds

d. H₀ : m ? 8.8 seconds

e. H₀ : m ? 8.8 seconds

Solution

Since nothing is known if the time is greater or lesser, we use

H0: m=8.8 seconds.