(Answered)-Suppose the regression model is y = + x + , where is - (2025 Updated Original AI-Free Solution

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Question

Suppose?the?regression?model?is?y?=???+??x?+??,?where???is?the?error?with?mean?0.?We?have?observed?the?following?data.
?(a)?Find?the?lease?square?estimators?for???and??.
?(b)?Find?the?coefficient?of?determination?R2.?

x	2	4	4	5	6
y	5	6	7	11	12