An analysis of the final test scores for Managerial Decision Making Tools reveals the scores follow the normal probability distribution. The mean of the distribution is 75 and the standard deviation is 8. The instructor wants to award an "A" to students whose score is in the highest 10 percent. What is the dividing point for those students who earn an "A"?
Top 10% is equivalent to the 90th percentile.
Using our percentile calculator, the 90th percentile cutoff point is 85.256
Top 10% is equivalent to the 90th percentile.
Using our percentile calculator, the 90th percentile cutoff point is 85.256