An agricultural scientist used four test plots to determine the relationship between wheat yield y (in bushels
Question:
(a) Find the least squares regression line y = ax + b for the data by solving the system for a and b.
(b) Use the linear model from part (a) to estimate the yield for a fertilizer application of 160 pounds per acre.
Transcribed Image Text:
Fertilizer, x 1.0 | 1.5 | 2.0 | 2.5 32 | 41 | 48| 53 Yield, y (4b + 7b + 13.5a = 322 7a = 174
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a 4b 70a 174 4b 7014 174 4b 76 b 19 Least squares ...View the full answer
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