1. Suppose you have a simple linear regression model with 51 observations. (a) You know that the estimated error variance from a simple linear regression is 2.04672. What is the sum of the squared residuals from your regression? (b) The estimated variance of b2 is 0.00098. What is the standard error of b₂? (c) Given the above information, what is Σ(x,- x)2?

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