Final answer:
The estimation method used to calculate the alpha and beta parameters that specify the regression line is Ordinary Least Square (OLS). OLS minimizes the sum of squared errors (SSE) to find the best-fit line for the given data.
Step-by-step explanation:
The estimation method used to calculate alpha and beta parameters that specify the regression line is Ordinary Least Square (OLS). OLS is a statistical technique that minimizes the sum of squared errors (SSE) to find the best-fit line for the given data. The alpha (intercept) and beta (slope) parameters are estimated using OLS.