Thus, it should be non-negative. Three lines of thought have emerged during the discussions. No remedial action is required. The model applies only to the restricted range of the data. Thus the possibility that the true intercept is non-negative cannot be excluded.
Remedial action is required.
One proposal is to force the regression line through the origin. Some students, however, do not buy the idea that the gold content and craftsmanship fee are freebies. A computer demonstration reveals that the fit is quite poor. Remedial action is required, and data transformations may be entertained. This is a reasonable figure for the value of the gold content and the craftsmanship fee.