Refer to Brand preference Problem 6.5

a. Transform the variables by means of the correlation transformation (7.44) and fit the standardized regression model (7.45).

b. Interpret the standardized regression coefficient b₁*.

c. Transform the estimated standardized regression coefficients by means fo (7.53) back to the ones for the fitted regression model in the original variables.

Problem 6.5 Data: n = 16

Yi	Xi1	Xi2
64	4	2
73	4	4
61	4	2
76	4	4
72	6	2
80	6	4
71	6	2
83	6	4
83	8	2
89	8	4
86	8	2
93	8	4
88	10	2
95	10	4
94	10	2
105	10	4