In a prediction study, the standard error of estimate was equal to 6.What percentage of the actual Y scores will be within 6 points of the predicted Y scores?
A) 16
B) 50
C) 68
D) 95
E) 99

Question

Quizplus · Accepted Answer

The standard error of estimate is a measure of how much the actual Y scores are expected to deviate from the predicted Y scores, on average. In a normal distribution, about 68% of scores fall within one standard deviation of the mean. Since the standard error of estimate is equal to 6, we can expect about 68% of actual Y scores to fall within 6 points of the predicted Y scores. Therefore, the correct choice is C, 68.

In a Prediction Study, the Standard Error of Estimate Was