Assume that you are testing the difference in the means of two independent populations at the 0.05 level of significance.The null hypothesis is: : - ≥ 0 and you have found the test statistic is z = -1.92.What should you conclude? A)The mean of pop.A is greater than the mean of pop.B because p α. C)There is no significant difference in the two means because p α. D)The mean of pop.B is greater than the mean of pop.A because p

Question

Assume that you are testing the difference in the means of two independent populations at the 0.05 level of significance.The null hypothesis is: : - ≥ 0 and you have found the test statistic is z = -1.92.What should you conclude? A)The mean of pop.A is greater than the mean of pop.B because p < α. B)The mean of pop.A is greater than the mean of pop.B because p > α. C)There is no significant difference in the two means because p > α. D)The mean of pop.B is greater than the mean of pop.A because p < α.

Quizplus · Accepted Answer

With a negative test statistic value of -1.92, the p-value is less than the level of significance of 0.05. This leads to the rejection of the null hypothesis. Therefore, we can conclude that the mean of population B is greater than the mean of population A.

Assume That You Are Testing the Difference in the Means