1. A reliability test of 7 samples was run until all samples had failed. As each sample

failed, it was taken out of the test (not replaced). The times to failure were (in hours):

150, 400, 500, 1000, 1500, 2000, 2500.

Perform a data plot, using median ranking, on 2 cycle Weibull paper.

What is the slope (B)?

What is the scale factor (n)?

What does the slope tell you about the failure rate?

What does n represent (besides scale factor) with the data having the slope you

just determined?