Analyze nestle csr initiative plan focuses on society issues
This is a CSR project, and choose to nestle as our company Note: Please give answer on mentioned words (must add intext citation) and required
Question
Consider the simple linear regression model Yi = β1 + β2Xi + ui . Show that the estimate of β2 can be written as βˆ 2 = σˆxy σˆ 2 x , where ˆσxy is the estimate of the covariance between Y and X and ˆσ 2 x is the estimate of the variance of X. (Hint: Write out σˆxy σˆ 2 x in its summation form to get an idea of what your end goal is. Start with the normal equations (the first order conditions for minimizing RSS) and manipulate until you obtain the desired result.)