Common Beta Hypothesis

For reliability growth data analysis only.

Description: Returns the results of the Common Beta Hypothesis (CBH) goodness-of-fit test. This function is applicable to the following data types:

Times-to-failure data

  • Multiple Systems - Concurrent Operating Times
  • Multiple Systems with Dates
  • Multiple Systems with Event Codes

Fielded data

  • Repairable Systems
  • Fleet

Field Format: [COMMONBETAGOF(Source Number)(Value_Index; Signif_Level)]

  • Source Number is the associated data source number.

  • Value_Index is a numerical value that allows you to specify which result to display:
    • To show whether the test passed or failed = 0.
    • To return the lower test value = 1.
    • To return the critical value = 2.
    • To return the upper test value = 3.

  • Signif_Level is the significance level for the results.

Remarks:

  • The Source Number is selected from the Data Source Index drop-down list.

  • If the critical value is between the lower and upper test values, then the CBH test passes.

Example:

  • [COMMONBETAGOF(1)(3;0.1)]

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