David Desreumaux,VP of Human Resources of American First Banks (AFB),is reviewing the employee training programs of AFB banks.His staff reports several statistics for teller training hours.The mean is 20 hours,the standard deviation is 5 hours,the median is 15 hours,and mode is 10 hours.The Pearsonian coefficient of skewness for teller training hours is __________.
A)6
B)1
C)3
D)4
E)0

Question

Quizplus · Accepted Answer

The Pearsonian coefficient of skewness can be calculated as follows: 
Skewness = 3 * (Mean - Median) / Standard Deviation
Skewness = 3 * (20 - 15) / 5 = 3
Therefore, the Pearsonian coefficient of skewness for teller training hours is 3.