Consider the analysis of covariance model without interaction, denoted by 1 + X + A. a. Write

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Consider the analysis of covariance model without interaction, denoted by 1 + X + A.

a. Write the formula for the model in such a way that the parameters are not identifiable. Show the corresponding model matrix.

b. For the model parameters in (a), give an example of a characteristic that is (i) estimable, (ii) not estimable.

c. Now express the model so that the parameters are identifiable. Explain how to interpret them. Show the model matrix when A has three groups, each containing two observations.

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Foundations Of Linear And Generalized Linear Models

ISBN: 9781118730034

1st Edition

Authors: Alan Agresti

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Question Posted: Sep 19, 2024 02:21 PM

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Consider the analysis of covariance model without interaction, denoted by 1 + X + A. a. Write

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Foundations Of Linear And Generalized Linear Models

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