Questions from Statistics

Q: Find the critical value(s) and rejection region(s

Find the critical value(s) and rejection region(s) for the type of chi-square test with sample size n and level of significance α. Two-tailed test, n = 41, α = 0.10

Q: Find the critical value(s) and rejection region(s

Find the critical value(s) and rejection region(s) for the type of chi-square test with sample size n and level of significance α. Left-tailed test, n = 6, α = 0.05

Q: Test the claim about the population variance σ2 or standard deviation s

Test the claim about the population variance σ2 or standard deviation s at the level of significance α. Assume the population is normally distributed. Claim: σ2 > 2; α = 0.10. Sample statistics: s2 =...

Q: Find the P-value for the hypothesis test with the standardized

Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α. Right-tailed test z = 2.46 α = 0.01

Q: Test the claim about the population variance σ2 or standard deviation s

Test the claim about the population variance σ2 or standard deviation s at the level of significance α. Assume the population is normally distributed. Claim: σ2 ≤ 60; α = 0.025. Sample statistics: s2...

Q: Test the claim about the population variance σ2 or standard deviation s

Test the claim about the population variance σ2 or standard deviation s at the level of significance α. Assume the population is normally distributed. Claim: σ = 1.25; α = 0.05. Sample statistics: s =...

Q: Test the claim about the population variance σ2 or standard deviation s

Test the claim about the population variance σ2 or standard deviation s at the level of significance α. Assume the population is normally distributed. Claim: σ ≠ 0.035; α = 0.01. Sample statistics: s...

Q: a. identify the claim and state H0 and Ha,

a. identify the claim and state H0 and Ha, b. find the critical value(s) and identify the rejection region(s), c. find the standardized test statistic x2, d. decide whether to reject or fail to rej...

Q: Find the critical F-value for a two-tailed test

Find the critical F-value for a two-tailed test using the level of significance α and degrees of freedom d.f.N and d.f.D. α = 0.10, d.f.N = 15, d.f.D = 27

Q: The statement represents a claim. Write its complement and state which

The statement represents a claim. Write its complement and state which is H0 and which is Ha. µ < 33