Whole crop weight versus rice weight: A study by Horie24 compared the dry weight B of brown rice with the dry weight W of the whole crop (including stems and roots). These data, in tons per hectare,25...

Whole crop weight versus rice weight: A study by Horie24 compared the dry weight B of brown rice with the dry weight W of the whole crop (including stems and roots). These data, in tons per hectare,25 for the variety Nipponbare grown in various environmental conditions are partially presented in the table below.

a. Find an approximate linear model for B as a function of W.

b. Which sample might be considered to have a lower rice weight than expected from the whole crop weight?

c. How much additional rice weight can be expected from 1 ton per hectare of additional whole crop weight?