ASQ

CRE · Question #97

To achieve 96 percent reliability at a 90 percent confidence level:

The correct answer is B. 100 units with one failure is required. See the full explanation below for the reasoning.

Reliability in Testing

Question

To achieve 96 percent reliability at a 90 percent confidence level:

Options

AUnits must be redundant.
B100 units with one failure is required
C25 units with no failures is required.
D20 units with no failures is required.

How the community answered

(32 responses)

A
16% (5)
B
72% (23)
C
9% (3)
D
3% (1)

Topics

#reliability demonstration#confidence level#sample size#binomial statistics

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