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Solved: Identifying Unusual Values with the Range Rule of

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 34BSC Chapter 3.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 34BSC

Identifying Unusual Values with the Range Rule of Thumb. In Exercises,use the range rule of thumb to determine whether a value is unusual.

Pulse Rates of Males Based on Data Set 1 in Appendix B, males have pulse rates with a mean of 67.3 beats per minute and a standard deviation of 10.3 beats per minute. Is it unusual for a male to have a pulse rate of 45 beats per minute? (All of these pulse rates are measured at rest.) Explain.

Step-by-Step Solution:

Answer :

Step 1 of 1 :

Given Pulse Rates of Males Based on Data Set 1 in Appendix B, males have pulse rates with a mean of 67.3 beats per minute and a standard deviation of 10.3 beats per minute.

We know that mean μ = 67.3 and standard deviation σ = 10.3

According to the range rule of thumb, most values should lie within 2 standard deviations of the mean.

We can therefore identify “unusual” values by determining if they lie outside these limits:

Maximum usual value = μ + 2σ

Maximum usual value = 67.3 + 2(10.3)

Maximum...

Step 2 of 3

Chapter 3.3, Problem 34BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Solved: Identifying Unusual Values with the Range Rule of

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