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Exponential reliability function

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Reference no: EM132800157

Here is a summary of the 8 units returned due to failure.

Returned Unit Operating time until failed(hours)

1 133

2 155

3 199

4 176

5 148

6 165

7 160

8 99

NOTE: This is obviously a small sample of 8 observations. But treat this as if it represented a very large sample so, for example, you do not need to try to apply a finite population correction factor, etc.]

Question (a). If the returned fixtures were in the stage where the exponential reliability function applied, based on these actual MTBF's what was the theoretical reliability at 200 hours of operation? [Note: to 2 decimal places.]

Question (b). Show your work and explain your answer.

Reference no: EM132800157

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