Life of Incandescent Light Bulbs: Difference between revisions
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[[ | Objective This example uses time-to-failure data from a life test done on incandescent light bulbs. | ||
Consider the following times to failure | |||
| |||
{| border="1" cellspacing="1" cellpadding="4" width="300" align="center" | |||
|+ Observed times-to-failure for ten bulbs in hours. | |||
|- | |||
! valign="middle" scope="col" align="center" | Order Number | |||
! valign="middle" scope="col" align="center" | Hours-to-failure | |||
|- | |||
| valign="middle" align="center" | 1 | |||
| valign="middle" align="center" | 361 | |||
|- | |||
| valign="middle" align="center" | 2 | |||
| valign="middle" align="center" | 680 | |||
|- | |||
| valign="middle" align="center" | 3 | |||
| valign="middle" align="center" | 721 | |||
|- | |||
| valign="middle" align="center" | 4 | |||
| valign="middle" align="center" | 905 | |||
|- | |||
| valign="middle" align="center" | 5 | |||
| valign="middle" align="center" | 1010 | |||
|- | |||
| valign="middle" align="center" | 6 | |||
| valign="middle" align="center" | 1090 | |||
|- | |||
| valign="middle" align="center" | 7 | |||
| valign="middle" align="center" | 1157 | |||
|- | |||
| valign="middle" align="center" | 8 | |||
| valign="middle" align="center" | 1330 | |||
|- | |||
| valign="middle" align="center" | 9 | |||
| valign="middle" align="center" | 1400 | |||
|- | |||
| valign="middle" align="center" | 10 | |||
| valign="middle" align="center" | 1695 | |||
|} | |||
[[Category:Weibull_Examples]] | |||
Revision as of 03:14, 25 June 2011
Objective This example uses time-to-failure data from a life test done on incandescent light bulbs.
Consider the following times to failure
| 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 |