Answer
50 minutes
Work Step by Step
μ: 45 σ:3
Area to the left of x = 0.95; the z value for .95 is 1.645.
$ x=μ+zσ= 45+(1.645)(3) = 49.935 \approx 50\ minutes$
Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 6 - Advanced Exercises - Page 264: 6.65
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