After a significant redesign of the control station, you and the other safety engineers have requested the unit be re-tested. However, the test budget has been reduced in the past year. If you reduced the test hours to 800 and you want to ensure a failure rate () of less than 0.02 with 97.5% confidence, what is the maximum number of failures you can experience during the testing?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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After a significant redesign of the control station, you and the other safety engineers have requested the unit be re-tested. However, the test budget has been reduced in the past year. If you reduced the test hours to 800 and you want to ensure a failure rate () of less than 0.02 with 97.5% confidence, what is the maximum number of failures you can experience during the testing?

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Step 1

Given that:

Failure rate is less than 0.02 

Confidence level =97.5

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