Author: Anonymous

A hypothesis test involves a population mean with n = 45. Which Excel function should be used for the critical value according to Module 6?

A left-tail chi-square test has critical value 8.907 and TS = 10.250. What is the decision? (answer with “reject H0” or “fail to reject H0”)

A sample has x̄ = 52, μ = 50, s = 8, and n = 64. What is the test statistic?

Write the missing complementary hypothesis exactly. Use mu for mean, p for proportion, sigma for std deviation, and sigma2 for variance. Use operators: =, , =, < or >. If H0: σ ≥ 5, then H1 is:

Which symbol represents a population mean?

A claim is H1. The hypothesis test result is “reject H0.” What is the conclusion about the claim?

A left-tail test has critical value -2.326 and TS = -2.01. What is the correct decision?

A hypothesis test involves a population mean with n = 18. Which Excel function should be used for the critical value?

Write the missing complementary hypothesis exactly. Use mu for mean, p for proportion, sigma for std deviation, and sigma2 for variance. Use operators: =, , =, < or >. If H1: μ > 18, then H0 is:

A sample has x̄ = 14.8, μ = 15.5, s = 2.1, and n = 49. What is the test statistic?