.Fit a power equation model (Ŷ = a2*xb2) to the following data set. Then calculate correlation coefficient.
x 2.5 3.5 5 6 7.5 10 12.5 15 17.5 20
y 7 5.5 3.9 3.6 3.1 2.8 2.6 2.4 2.3 2.3
1 answer
The power equation model is Ŷ = 0.0014x2.7. The correlation coefficient is 0.988.