Multiple Choice
Given the following null and alternative hypotheses H0 : μ1 ≥ μ2 HA : μ1 < μ2 Together with the following sample information Assuming that the populations are normally distributed with equal variances, test at the 0.05 level of significance whether you would reject the null hypothesis based on the sample information. Use the test statistic approach.
A) Because the calculated value of t = -2.145 is less than the critical value of t = -1.6973, reject the null hypothesis. Based on these sample data, at the α = 0.05 level of significance there is sufficient evidence to
Conclude that the mean for population 1 is less than the mean for population 2.
B) Because the calculated value of t = -1.814 is less than the critical value of t = -1.6973, reject the null hypothesis. Based on these sample data, at the α = 0.05 level of significance there is sufficient evidence to
Conclude that the mean for population 1 is less than the mean for population 2.
C) Because the calculated value of t = -1.329 is not less than the critical value of t = -1.6973, do not reject the null hypothesis. Based on these sample data, at the α = 0.05 level of significance there is not sufficient
Evidence to conclude that the mean for population 1 is less than the mean for population 2.
D) Because the calculated value of t = -1.415 is not less than the critical value of t = -1.6973, do not reject the null hypothesis. Based on these sample data, at the α = 0.05 level of significance there is not sufficient
Evidence to conclude that the mean for population 1 is less than the mean for population 2.
Correct Answer:

Verified
Correct Answer:
Verified
Q77: An accounting firm has been hired by
Q78: A major retail clothing store is interested
Q79: The point estimate in a paired difference
Q80: The following samples are observations taken from
Q81: To test whether Model A and Model
Q83: A commuter has two different routes available
Q84: A major retail clothing store is interested
Q85: The management of a department store is
Q86: You are given the following results of
Q87: The following paired samples have been obtained