Output (Yi-Ymean)(Xi - X mean)
300 87 -2.75 8.42 -23.15
302 79 -0.75 0.42 -0.31
316 83 13.25 4.42 58.52
330 84 27.25 5.42 147.60
300 78 -2.75 -0.58 1.60
250 60 -52.75 -18.58 980.27
300 82 -2.75 3.42 -9.40
340 85 37.25 6.42 239.02
315 79 12.25 0.42 5.10
330 84 27.25 5.42 147.60
310 80 7.25 1.42 10.27
240 62 -62.75 -16.58 1040.60
302.75 78.5833333333 2597.75
N= 12
X*e ei^2
329.25 -29.25 -2545.18 855.85
304.06 -2.06 -162.91 4.25
316.66 -0.66 -54.66 0.43
319.81 10.19 856.16 103.88
300.91 -0.91 -71.22 0.83
244.23 5.77 346.25 33.30
313.51 -13.51 -1107.77 182.51
322.96 17.04 1448.68 290.47
304.06 10.94 864.09 119.64
319.81 10.19 856.16 103.88
307.21 2.79 223.10 7.78
250.53 -10.53 -652.69 110.82
181.37 S^2: Residual Variance
13.4672193331
S: Standard Error of Regression
Hours of
work (Yi - Y mean) (Xi - X mean)
Y mean X mean
Y-
predicted
OLS
residual ei
