Question: 3.Consider the linear regression model Y i = a+bx i + u i Suppose that there are no data on xi but we have data

3.Consider the linear regression model

Yi = a+bxi + ui

Suppose that there are no data on xi but we have data on Zi = ao +a1x1 , where ao and a1 are arbitrary known constants. Using data of variable Zi we can estimate Yi=co+c1Zi +Ui

Show how from the estimates of co and c1 you can obtain the estimates of the original model.

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