1P-Exponential MLE Solution with Right Censored Data

This example validates the calculations for the MLE solution and Fisher Matrix bound for a 1-parameter exponential distribution with right censored and complete failure data in Weibull++ standard folios.

Reference Case

The formulas on page 166 in the book Statistical Methods for Reliability Data by Dr. Meeker and Dr. Escobar, John Wiley & Sons, 1998.

where TTT is the total test time and r is the number of failures.

Data

Number in State	State F or S	Time to Failure
1	F	16
1	F	34
1	F	53
1	F	75
1	F	93
1	F	120
4	S	200

Result

So the variance of is 6567.04

Results in Weibull++