Warranty Data Analysis Example

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Warranty Data Analysis Example

This example compares the warranty data analysis results.


Reference Case

The data set is from Example 11.2 on page 453 in the book Life Cycle Reliability Engineering by Dr. Guangbin Yang, John Wiley & Sons, 2007.


Data

A Nevada chart for the warranty data is provided in Table 11.3. The last two rows were combined, as specified in the example.

TTF
TIS 1 2 3 4 5 6 7 8 9 10 11 12 Total Sales Volume
12 3 0 3 3 4 2 1 5 4 2 3 3 45 2123
11 0 1 2 0 4 2 1 2 0 4 3 30 1853
10 1 3 2 2 3 4 3 5 4 8 45 2238
9 1 2 0 3 4 2 2 3 6 32 3052
8 2 3 2 6 2 1 6 4 34 2953
7 1 1 3 2 1 4 8 27 2788
6 1 0 1 0 1 2 11 2037
5 0 0 1 1 0 7 1863
4 0 0 1 1 6 1231
3 0 1 1 5 823
2 0 1 3 638
1 0 1 568
Total 9 12 16 18 19 17 21 19 14 14 6 3


Result Results in Weibull++