13.29. In the model E{y) = a + /3ix + /ibz, where z is a dummy variable,...

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13.29. In the model E{y) = a + /3ix + /ibz, where z is a dummy variable,

(a) The categorical predictor has two categories.

(b) One line has slope /3i and the other has slope Pi-

(c) (S2 is the difference between the mean ofy for the second and first categories of the categorical variable.

(d) @2 is the difference between the mean ofy for the second and first categories of the categorical variable, controlling for x.

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Statistical Methods For The Social Sciences

ISBN: 9781292021669

4th Edition

Authors: Barbara Finlay, Alan Agresti

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Question Posted: Sep 21, 2024 12:00 PM

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13.29. In the model E{y) = a + /3ix + /ibz, where z is a dummy variable, (a) The categorical predictor has two categories. (b) One line has slope /3i and the other has slope Pi- (c) (S2 is the...
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13.29. In the model E{y) = a + /3ix + /ibz, where z is a dummy variable,...

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Statistical Methods For The Social Sciences

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