Question: Answer the following questions using the accompanying SPSS output, which is based on data on the growth rates (Y) of depleted chicks at different (log)

Answer the following questions using the accompanying SPSS output, which is based on data on the growth rates (Y) of depleted chicks at different (log) dosage levels (X) of vitamin B for males and females.

a. Define a single multiple regression model that incorporates different straight-line models for males and females.
b. Plot the fitted straight lines for each sex on graph paper.
c. Test for parallelism.
d. Test for coincidence.

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a Y 0 1 X 2 Z 3 XZ E where Z 1 if males 0 if females b For males 13767 14965... View full answer

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