The group plans to do a statistical test regarding the value of µ. It chooses a random sample of monthly mileages and computes the mean of the sample to be 2625 miles and the standard deviation to be 700 miles.
Based on this information, complete the parts below.
What are the null hypothesis H₀ and the alternative hypothesis H₁ that should be used for this test?
H₀ :
H₁ :
Suppose that the group decides to reject the null hypothesis. What sort of error might it be making? (choose one)
Type I
Type II
Suppose the true mean monthly mileage of cars rented in the U.S. this year is 2610. Fill in the blanks to describe a Type II error.
A Type II error would be rejecting/failing to reject (choose one) the hypothesis that µ is less than/less than or equal to/greater than/greater than or equal to/not equal to/equal to (choose one) 2800/2625/700 (choose one) when, in fact, µ is equal to 700/equal to 2625/equal to 2800/less than 700/greater than 2625. (choose one)