Problem 7RE

Professors: Estimating Mean and Standard Deviation Use the range rule of thumb to estimate the standard deviation of ages of all teachers at your college.

Problem 7RE

Answer:

Step1 of 3:

We have,

Minimum age = 23

Maximum age = 70

Step2 of 3:

We need to estimate the standard deviation of ages of all teachers at your college by using the range rule of thumb.

Step3 of 3:

Based on a minimum age of 23 years and a maximum age of 70 years an estimate of the age standard deviation would be 11.75years.