Question: 1. Consider the linear regression model Y; = lX + 153ng + 5;, i = 1, ...,n, with two predictors (without intercept). Assume that a;

1. Consider the linear regression model Y; = lX + 153ng

1. Consider the linear regression model Y; = lX + 153ng + 5;, i = 1, ...,n, with two predictors (without intercept). Assume that a; are independently and identically distributed as N (0, 02). Find a necessary and sufcient condition for the least squares estimates of {31 and ,82 to be independent

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