Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 3 - Statistics for Describing, Exploring, and Comparing Data - 3-4 Measures of Relative Standing and Boxplots - Basic Skills and Concepts - Page 124: 8


a)$-15.3bpm.$ b)-1.49 c)-1.49 d)usual.

Work Step by Step

a) Difference between the student's pulse rate and the mean of the male pulse rates: $52bpm-67.3bpm=-15.3bpm.$ b)$z=\frac{x-\mu}{\sigma}=\frac{52bpm-67.3bpm}{10.3bpm}=-1.49.$ Hence the student's pulse rate is 1.49 standard deviations from the mean of the male pulse rates. c)$z=\frac{x-\mu}{\sigma}=\frac{52bpm-67.3bpm}{10.3bpm}=-1.49.$ d) The z-score of the student's pulse rate is between -2 and 2, hence it is usual.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.