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Get Full Access to Elementary Statistics - 12 Edition - Chapter 3.4 - Problem 7re
Get Full Access to Elementary Statistics - 12 Edition - Chapter 3.4 - Problem 7re

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# Professors: Estimating Mean and Standard Deviation Use the

ISBN: 9780321836960 18

## Solution for problem 7RE Chapter 3.4

Elementary Statistics | 12th Edition

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Problem 7RE

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.

Step-by-Step Solution:
Step 1 of 3

Problem 7RE

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.

Step 2 of 3

Step 3 of 3

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