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Distribution Analyses

Test for a Specific Distribution

You can test whether the data are from a specific distribution with known parameters by using the Kolmogorov statistic. The probability of a larger Kolmogorov statistic is given in Feller (1948). After choosing Curves:Test for a Specific Distribution from the menu, you can specify the distribution and its parameters in the Test for a Specific Distribution dialog.

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Figure 38.31: Test for a Specific Distribution Dialog

The default tests that the data are from a normal distribution with \mu= 0 and \sigma= 1.Figure 38.32 shows a test for a specified normal distribution (\mu = 60, \sigma = 10). Use sliders to change the distribution parameters and have the test results updated accordingly.

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Figure 38.32: Test for a Specific Distribution

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