ASQ
CRE · Question #95
Failure occur on a system at 75, 79, 83, 85 hours. Assuming normality, one sided and unbiased the lower tolerance limit for 95% reliability with 90% confidence for this sample is:
The correct answer is D. 63 hours. See the full explanation below for the reasoning.
Reliability in Testing
Question
Failure occur on a system at 75, 79, 83, 85 hours. Assuming normality, one sided and unbiased the lower tolerance limit for 95% reliability with 90% confidence for this sample is:
Options
- A96 hours.
- B60 hours.
- C100 hours.
- D63 hours.
How the community answered
(20 responses)- A10% (2)
- B5% (1)
- C15% (3)
- D70% (14)
Topics
#tolerance limits#normal distribution#reliability confidence#statistical tolerance
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