Question: 2. Consider the simple linear regression ya = 50 + 5131' + 8?; (a) Derive the weighted least squares estimators for 50 and 61. (b)

2. Consider the simple linear regression ya = 50 + 5131' + 8?; (a) Derive the weighted least squares estimators for 50 and 61. (b) Express the weighted least squares estimator for 31 in terms of the centered variables yz- gm and 33?; Em, where gm and LEW are the weighted means

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