# Question: Refer to Exercise 15 66 and consider the observation on moderate income

Refer to Exercise 15.66 and consider the observation on moderate-income group and high SAT score (x21 = 218).

a. Estimate µ.

b. Estimate and interpret G2.

c. Estimate and interpret B2.

d. Estimate ε22.

a. Estimate µ.

b. Estimate and interpret G2.

c. Estimate and interpret B2.

d. Estimate ε22.

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