1. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a storm is in progress with a severe storm class rating. Let us say that we want to set up a statistical test to see if the wave action (i.e.. height) is dying down or getting worse. If you wanted to test the hypothesis that the waves are dying down. What would you use for the alternate hypothesis is the P-value are on the left, right, or on both sides of the mean.

Select one:

a. H ₁ : m is less than 16.4 feet: the P-value area is on the left of the mean

b. H1: m is not equal to 16.4 feet: the P-value area is on the right of the mean

c. H ₁ : m is greater than 16.4 feet: the P-value area is on the right of the mean

d. H ₁ : m is less than 16.4 feet: the P-value area is on the right of the mean

2. Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 7.8 seconds. Suppose that you wont to test the claim that the average time to accelerate from 0 to 60 miles per hour is longer than 7.8 seconds. What would you use for the alternative hypothesis?

Select one:

a. H ₁ : m = 7.8 seconds

b. H ₁ : m ¹ 7.8 seconds

c. H ₁ : m < 7.8 seconds

d. H ₁ : m ? 7.8 seconds

3. 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. H ₁ : m: ¹ 8.1 seconds

b. H ₁ : m < 8.1 seconds

c. H ₁ : m = 8.1 seconds

e. H ₁ : m ? 8.1 seconds

4. 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?

a. H ₀ : m ? 8.8 seconds

b. H _0: m = 8.8 seconds

c. H ₀ : m ¹ 8.8 seconds

d. H ₀ : m > 8.8 seconds

e. H _{0 :} m < 8.8 seconds

Answer rating: 100% (QA)

1 D... View the full answer