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6) Suppose a multinomial regression model has two continuous explanatory variables ?1 and ?2 ,and they...

6) Suppose a multinomial regression model has two continuous explanatory variables ?1 and ?2 ,and they are represented in the model by their linear and interaction terms.
a) For a ? unit increase in ?1, derive the corresponding odds ratio that compares a category ? response to a category 1 response. Show the form of the variance that would be used in a Wald confidence interval.
b) Repeat this problem for a proportional odds regression model.

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