Assume That You Are Testing the Difference in the Means

question 69

Multiple Choice

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.

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