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Sep 17, 2014 7:16 AM
(1496 views)

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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

3 REPLIES

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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
(898 views)

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Sep 17, 2014 11:23 AM
(898 views)