Homework SourseA number of studies have shown lichens certain plants compos
A number of studies have shown lichens (certain plants composed of an alga and a fungus) to be excellent bioindicators of air pollution. An article gives the following data (read from a graph) on x = NO3? wet deposition (g N/m2) and y = lichen (% dry weight):
(a) What are the least square estimates of ?0 and ?1? (Round your answers to three decimal places.)
| x | 0.05 | 0.10 | 0.11 | 0.12 | 0.31 | 0.37 | 0.42 | 0.58 | 0.68 | 0.68 | 0.73 | 0.85 | 0.92 |
| y | 0.48 | 0.58 | 0.43 | 0.51 | 0.56 | 0.52 | 0.99 | 0.89 | 0.90 | 1.02 | 0.83 | 1.01 | 1.67 |
Solution
(a) bo=0.365
b1=0.953
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(b)0.365+0.953*0.9 =1.223
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(c)0.1903
