Question 14 The decline of salmon fisheries along the Columbia River in Oregon h

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Question 14 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. Here is the computer software printout of the summary: oefficients Estimate Std. Error t value Pr Itl) -90.020 16.702 0.701 1 0.044 1 15.798 0.000 Using this information, give the cquation of the least squares regression line. a) = 0.701x + 16.702 b) Oy--90.020x+0.701 c) y- 16.702x -90.020 d) = 0.701x-90.020 e) . 1 6.702x + 0.044 f ONone of the above

Explanation / Answer

from above output intecept bo =-90.020

and slope b1 =0.701

as we know that least square equation Yhat =b1*x+bo

hence correct option is d)

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