# Question: Test each of the following hypotheses by using the given

Test each of the following hypotheses by using the given information. Assume the populations are normally distributed.

a. H0: σ2 = 20

Ha: σ2 > 20

α = .05, n = 15, s2 = 32

b. H0: σ2 = 8.5

Ha: σ2 ≠ 8.5

α = .10, n = 22, s2 = 17

c. H0: σ2 = 45

Ha: σ2 > 45

α = .01, n = 8, s2 = 4.12

d. H0: σ2 = 20

Ha: σ2 ≠ 20

α = .05, n = 11, s2 = 1.2

a. H0: σ2 = 20

Ha: σ2 > 20

α = .05, n = 15, s2 = 32

b. H0: σ2 = 8.5

Ha: σ2 ≠ 8.5

α = .10, n = 22, s2 = 17

c. H0: σ2 = 45

Ha: σ2 > 45

α = .01, n = 8, s2 = 4.12

d. H0: σ2 = 20

Ha: σ2 ≠ 20

α = .05, n = 11, s2 = 1.2

## Relevant Questions

Previous experience shows the variance of a given process to be 14.Researchers is testing to determine whether this value has changed. They gather the following dozen measurements of the process. Use these data and α = .05 ...Use α = .05 and solve for the probability of committing a Type II error for the following possible true alternative means. a. α = .10b. α = .05c. α = .01d. Based on the answers to parts (a), (b), and (c), what happens to ...For each of the following problems, use the eight-step approach to test the hypotheses.a. H0:p = 36 Ha: p > 36n = 783 x̄ = 230α = .10.b. H0:p = 36 Ha: p ≠ 36n = 401p̂ = .56α = .05.Life insurance experts have been claiming that the average worker in the city of Cincinnati has no more than $25,000 of personal life insurance. An insurance researcher believes that this is not true and sets out to prove ...The American Water Works Association reports that, on average, men use between 10 and 15 gallons of water daily to shave when they leave the water running. Suppose the following data are the numbers of gallons of water used ...Post your question