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# Solution: z Scores. In Exercises, express allz scores with

## Problem 8BSC Chapter 3.4

Elementary Statistics | 12th Edition

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Problem 8BSC

z Scores. In Exercises, express allz scores with two decimal places.

Student’s Pulse Rate A male student of the author has a measured pulse rate of 52 beats per minute. Based on Data Set 1 in Appendix B, males have a mean pulse rate of 67.3 beats per minute and a standard deviation of 10.3 beats per minute.

a. What is the difference between the student’s pulse rate and the mean pulse rate of males?

b. How many standard deviations is that (the difference found in part (a))?

c. Convert the student’s pulse rate to a z score.

d. If we consider “usual” pulse rates to be those that convert to z scores between −2 and 2, is the student’s pulse rate usual or unusual?

Step-by-Step Solution:
Step 1 of 3

Solution 8BSC

(a)

The difference between the given student’s pulse rate and the mean pulse rateis

Therefore, the student’s pulse rate is15.3 beats per minute below the mean pulse rate.

(b)

We know that, score for a data value  found by

.

The score for the given student’s pulse rate is

Therefore,...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

The full step-by-step solution to problem: 8BSC from chapter: 3.4 was answered by Sieva Kozinsky, our top Statistics solution expert on 03/15/17, 10:30PM. Elementary Statistics was written by Sieva Kozinsky and is associated to the ISBN: 9780321836960. The answer to “z Scores. In Exercises, express allz scores with two decimal places.Student’s Pulse Rate A male student of the author has a measured pulse rate of 52 beats per minute. Based on Data Set 1 in Appendix B, males have a mean pulse rate of 67.3 beats per minute and a standard deviation of 10.3 beats per minute.a. What is the difference between the student’s pulse rate and the mean pulse rate of males?________________b. How many standard deviations is that (the difference found in part (a))?________________c. Convert the student’s pulse rate to a z score.________________d. If we consider “usual” pulse rates to be those that convert to z scores between ?2 and 2, is the student’s pulse rate usual or unusual?” is broken down into a number of easy to follow steps, and 120 words. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12th. Since the solution to 8BSC from 3.4 chapter was answered, more than 326 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Pulse, rate, scores, minute, beats. This expansive textbook survival guide covers 121 chapters, and 3629 solutions.

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