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| '''Normal Distribution General Example Complete Data'''
| | #REDIRECT[[Normal_Distribution_Examples#Times-to-_Failure_Data_Without_Suspensions]] |
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| Eight units are being reliability tested and the following is a table of their times-to-failure:
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| {|border="1" align="center" style="border-collapse: collapse;" cellpadding="5" cellspacing="5"
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| |-
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| |colspan="3" style="text-align:center"| Non-Grouped Data for Example 12
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| |-
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| !Data point index
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| !State F or S
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| !State End Time
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| |-
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| |1 ||F||2
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| |-
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| |2 ||F||5
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| |-
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| |3 ||F||11
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| |-
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| |4 ||F||23
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| |-
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| |5 ||F||29
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| |-
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| |6 ||F||37
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| |-
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| |7||F||43
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| |-
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| |8||F||59
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| |}
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| '''Solution'''
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| This data set can be entered into Weibull++ by creating a Data Sheet appropriate for the entry of non-grouped times-to-failure data.
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| The computed parameters for maximum likelihood are:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 26.13 \\
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| & {{{\hat{\sigma }}}_{T}}= & 18.57
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| \end{align}</math>
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| For rank regression on x:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 26.13 \\
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| & {{{\hat{\sigma }}}_{T}}= & 21.64
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| \end{align}</math>
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| For rank regression on y:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 26.13 \\
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| & {{{\hat{\sigma }}}_{T}}= & 22.28.
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| \end{align}</math>
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