Exam CRE Topic 1 Question 78 Discussion

Actual exam question for ASQ's CRE exam
Question #: 78
Topic #: 1
Fifteen(15) motors were tested for a total of 1,200 cumulative hours, with four failure occuring. The test was then failure-truncated. If the failure rate is assumed to be constant, what is the 95% lower confidence limit of MTBF?
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Suggested Answer: A Vote an answer

by Glenn at Apr 16, 2026, 09:18 PM

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