The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on y = maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and x = squawfish length, both in mm. Use the following statistics to give the equation of the least squares regression line. x = 524.800, y = 303.660, sx = 14.429, sy = 11.200, r = 0.9662 a) ŷ = 1.245x − 89.940 b) ŷ = 0.750x − 89.940 c) ŷ = -89.940x + 0.750 d) ŷ = 1.245x + 89.940 e) ŷ = 0.750x + 89.940 f) None of the above
The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on y = maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and x = squawfish length, both in mm. Use the following statistics to give the equation of the least squares regression line. x = 524.800, y = 303.660, sx = 14.429, sy = 11.200, r = 0.9662 a) ŷ = 1.245x − 89.940 b) ŷ = 0.750x − 89.940 c) ŷ = -89.940x + 0.750 d) ŷ = 1.245x + 89.940 e) ŷ = 0.750x + 89.940 f) None of the above
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on y = maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and x = squawfish length, both in mm. Use the following statistics to give the equation of the least squares regression line.
x = 524.800, y = 303.660, sx = 14.429, sy = 11.200, r = 0.9662
x = 524.800, y = 303.660, sx = 14.429, sy = 11.200, r = 0.9662
a) ŷ = 1.245x − 89.940
b) ŷ = 0.750x − 89.940
c) ŷ = -89.940x + 0.750
d) ŷ = 1.245x + 89.940
e) ŷ = 0.750x + 89.940
f) None of the above
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