Find the equation of the line containing the points (50, 58) and (80, 33).
y=___x + (__)
(type intergers or sinplified fractions)
(c) Graph the line found in part (b) on the scatter diagram
(d) By hand, determine the least-squares regression line (Rounding to three decimal places). First find the correlation coefficient, r.
(e)Graph the least-squares regression line on the scatter diagram.
(f) Compute the sum of the squared residuals for the line found in part (b)
(g) Compute the sum of the squared residuals for the least-squares regression line found in part (d).
(h) Comment on the fit of the line found in part (b) versus the least-squares regression line found in part D. The line with the least sum of square residuals is the better fit. Compare the values to determine which line best fits the data.
