Elementary Statistics (12th Edition)

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

Chapter 6 - Normal Probability Distributions - Review - Chapter Quick Quiz - Page 315: 8

Answer

4.898

Work Step by Step

By using the table, z=0.84 belongs to the probability of 0.8. Hence, the value we are looking for is the mean plus the z-score times the standard deviation:$x=\mu+z\cdot \sigma=4.577+0.84 \cdot 0.382=4.898.$
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