Refer to the Economic Letters (Vol. 100, 2008) study of whether the color of a female solicitor's
Question:
a. Write a first-order model (with no interaction) for mean contribution level, E(y), as a function of a solicitor's hair color and her beauty rating.
b. Refer to the model, part a. For each hair color, express the change in contribution level for each 1-point increase in a solicitor's beauty rating in terms of the model parameters.
c. Write an interaction model for mean contribution level, E(y), as a function of a solicitor's hair color and her beauty rating.
d. Refer to the model, part c. For each hair color, express the change in contribution level for each 1-point increase in a solicitor's beauty rating in terms of the model parameters.
e. Refer to the model, part c. Illustrate the interaction with a graph.
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Related Book For
Statistics For Business And Economics
ISBN: 9780134506593
13th Edition
Authors: James T. McClave, P. George Benson, Terry Sincich
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