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 | '''Weibull Distribution Interval Data Example'''
  |  | #REDIRECT [[Weibull Distribution Examples]]  | 
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 | Suppose that we have run an experiment with eight units being tested and the following is a table of their last inspection times and times-to-failure:
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 | Table 6.5 - The test data for Example 16
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 | Data point index
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 | Last Inspection
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 | Time-to-failure
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 | 1
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 | 30
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 | 32
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 | 2
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 | 32
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 | 35
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 | 3
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 | 35
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 | 37
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 | 4
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 | 37
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 | 40
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 | 5
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 | 42
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 | 42
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 | 6
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 | 45
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 | 45
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 | 7
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 | 50
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 | 50
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 | 8
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 | 55
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 | 55
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 | Analyze the data using several different parameter estimation techniques and compare the results.
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 | ===Solution to Weibull Distribution Example 12===
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 | This data set can be entered into Weibull++ by opening a new Data Folio and choosing Times-to-failure and My data set contains interval and/or left censored data.
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 | The data is entered as follows,
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 | The computed parameters using maximum likelihood are:
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 | using RRX or rank regression on X:
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 | and using RRY or rank regression on Y:
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 | The plot of the MLE solution with the two-sided 90% confidence bounds is:
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