Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

by Bluman, Allan

Published by McGraw-Hill Education

ISBN 10: 0078136334

ISBN 13: 978-0-07813-633-7

Chapter 6 - The Normal Distribution - 6-1 Normal Distribution - Extending the Concepts - Page 324: 56

Answer

$1.175$

Work Step by Step

The central area is 0.76, half-tail area would be $(1-0.76)/2=0.12$ which means that $P(-z_0)=0.12$ and this leads to $-z_0=-1.175, z_0=1.175$

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