If the wages of workers for a given company are normally distributed with a mean of $15 per hour, then the proportion of the workers earning more than $13 per hour
A) is greater than the proportion earning less than $13 per hour.
B) is greater than the proportion earning less than $18 per hour.
C) is less than 50 percent.
D) is less than the proportion earning more than the mean wage.

Question

Quizplus · Accepted Answer

Since the average is $15 and you are concerned with those making more than $13 an hour, $13 would be to the left of $15 on the graph. There would a higher proportion of those to the right of $13 than the left because most of the data would be centered around $15 since that is the average.

If the Wages of Workers for a Given Company Are