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Sep 17, 2014 7:16 AM
(4570 views)

I am currently working with a linear fit via the "Fit Y by X" option in JMP. In regards to the Parameter Estimates table, there is an option when right clicking on the table under "columns" to add columns for the upper and lower 95% confidence intervals for the Intercept and x4, but what if I want to know confidence intervals other then 95%? Is there a way to get JMP to display other values? (i.e. 90% or 99%)?

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Sep 17, 2014 7:51 AM
(7713 views)

Solution

Hi Arcadinal,

In Fit Y by X the confidence level for the parameter estimate confidence intervals is not selectable. However, you can perform the identical analysis with the more flexible **Fit Model** and in that platform you can set the confidence level for the confidence intervals. To set the alpha level, first launch Fit Model (Analyze > Fit Model) and specify your Y and X variables. Before clicking **Run**, click the Red Triangle in the model launch and select **Set ****Alpha Level. **To get 99% intervals, enter .01, for 90% intervals enter .10.

Next, reveal the confidence intervals in the same way you did before (right clicking the Parameter Estimates > Columns). You will find confidence intervals corresponding to the alpha level you specified.

I hope this helps!

Julian

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Sep 17, 2014 7:51 AM
(7714 views)

Hi Arcadinal,

In Fit Y by X the confidence level for the parameter estimate confidence intervals is not selectable. However, you can perform the identical analysis with the more flexible **Fit Model** and in that platform you can set the confidence level for the confidence intervals. To set the alpha level, first launch Fit Model (Analyze > Fit Model) and specify your Y and X variables. Before clicking **Run**, click the Red Triangle in the model launch and select **Set ****Alpha Level. **To get 99% intervals, enter .01, for 90% intervals enter .10.

Next, reveal the confidence intervals in the same way you did before (right clicking the Parameter Estimates > Columns). You will find confidence intervals corresponding to the alpha level you specified.

I hope this helps!

Julian

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Sep 17, 2014 10:30 AM
(3972 views)

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Sep 17, 2014 11:23 AM
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