Question: Explain the conditions under which an experimenter should consider using regression through the origin. Consider the following data.

X        0.6           0.7            0.4             1.1           1.3            0.9             1.6            1.2

Y        0.7           0.8            0.6             1.4           1.6            0.7             1.3            1.5

Assume that the (other) conditions are met for the proper use of regression through the origin, and obtain the prediction equation.