Elementary Statistics (12th Edition)

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

Chapter 6 - Normal Probability Distributions - 6-3 Applications of Normal Distributions - Basic Skills and Concepts: 1

Answer

a) Mean:0, standard deviation:1. b) The standardised z-scores have no units.

Work Step by Step

a) Standardised z-scores have a standard normal distribution, hence the mean is 0 and the standard deviation is 1. b) The standardised z-scores have no units (because to determine them you divide a value in beats per minute by a value in beats per minute, these cancel each other out).
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