Life of Incandescent Light Bulbs

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This example uses time-to-failure data from a life test done on incandescent light bulbs. The observed times-to-failure are given in the next table.   

Observed times-to-failure for ten bulbs in hours.
Order Number Hours-to-failure
1 361
2 680
3  721
4 905
5 1010
6  1090
7 1157
8 1330
9 1400
10 1695

Do the following:

  1. Plot the data on a Weibull probability plot and obtain the Weibull model parameters.
  2. Compute the B10 life of the bulbs.