Bahatamy Academy has an outrageously intelligent student body.In a recent evaluation of all the high schools in the state,Bahatamy Academy received a z-score of +3 for its corresponding sample mean of SAT scores.With a population mean of 500 and a standard deviation (standard error)of 200 for the sampling distribution,what was Bahatamy's sample mean?

Question

Quizplus · Accepted Answer

Z-score = (sample mean - population mean)/(standard deviation)
+3 = (sample mean - 500)/200
sample mean - 500 = 600
sample mean = 1,100

Bahatamy Academy Has an Outrageously Intelligent Student Body