Question: 30. Refer to Example 14.4 on birth rates. To allow for greater variation at higher values of the mean, use the gamma GLM with identity

30. Refer to Example 14.4 on birth rates. To allow for greater variation at higher values of the mean, use the gamma GLM with identity link.

a) Fit the gamma linear model. Compare estimates to those obtained using least squares (i.e., the GLM with normal random component)

b) Fit the gamma quadratic model. Compare estimates to those obtained using least squares. Find the GNP value at which predicted birth rate takes its minimum value.

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