16-1. Given the following sample data set (with the X values held fixed), find:

(a) Least squares estimates of β0 and β1

(b) An estimate of σ2

ε

(c) Standard error of estimate

(d) Estimates of the standard errors of the regression coefficients Y 4 4 6 6 10 8 10 14 10 16 X 2 4 6 8 9 10 11 12 14 16