Can somebody please help me out with this. It is Schweser #1830: Which of the following statements is most accurate. This is the answer, but I can’t figure it out. D) A hypothesized mean of 3, a sample mean of 6, and a standard error of the sampling means of 2 give a sample Z-statistic of 1.5.

For hyposthesis test concerning the mean the statistic = X - u) / (s/n^.5) A hypothesized mean of 3, ==> u = 3 a sample mean of 6===? X =6 and a standard error of the sampling means of 2 ===> S / n^ .5 = 2 Z-statistic of 6 - 3 / 2 = 1.5

sv102 thank you. I understand now.