6.6 r: Estimating Mechanism

Make a table with columns for

  • \((x_i-\bar x)\)
  • \((y_i-\bar y)\)
  • \((x_i-\bar x)(y_i-\bar y)\)
  • \((x_i-\bar x)^2\)
  • \((y_i-\bar y)^2\)

Then sum them and put in the formula