A reliability demonstration consists of testing a specified number of units for a specified period of time. If fewer than k units fail, you pass the demonstration, and conclude that the product reliability meets or exceeds a reliability standard.
The Reliability Demonstration feature computes required sample sizes and experimental run-times for demonstrating that a product meets or exceeds a specified reliability standard.
To launch the Reliability Demonstration calculator, select DOE > Design Diagnostics > Sample Size and Power, and then select Reliability Demonstration. Reliability Demonstration Window shows the Reliability Demonstration window.
Reliability Demonstration Window
Reliability Demonstration Plot
1.
Select DOE > Design Diagnostics > Sample Size and Power.
2.
Select Reliability Demonstration.
3.
Select Weibull from the Distribution list.
5.
Enter 2 for Max Failures Tolerated.
6.
7.
Enter 0.9 for Probability of Surviving.
8.
Enter 800 for Time of Demonstration.
9.
Click Continue. Reliability Demonstration Results shows the results.
Reliability Demonstration Results

Help created on 9/19/2017