Chapter 3.4, Problem 23E

Remainder Round all answers to two decimal places unless otherwise indicated.

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

Whole crop weight $\mathit{W}$	Rice Weight $\mathit{B}$
6	1.8
11.1	3.2
13.7	3.7
14.9	4.3
17.6	5.2

1. a. Find an approximate linear model for $B$ as a function of $W$.
2. b. Which sample might be considered to have a lower rice weight than expected from the whole crop weight?
3. c. How much additional rice weight can be expected from 1 ton per hectare of additional whole crop weight?