Answered: When coastal power stations take in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

When coastal power stations take in large quantities of cooling water, it is inevitable that a number of fish are drawn in with the water. Various methods have been designed to screen out the fish. A particular article examined intake fish catch at an English power plant and several other variables thought to affect fish intake.

y = fish intake (number of fish)
x₁ = water temperature (°C)
x₂ = number of pumps running
x₃ = sea state (values 0, 1, 2, or 3)
x₄ = speed (knots)

Part of the data given in the article were used to obtain the estimated regression equation(based on n = 26). SSRegr = 1486.6 and SSResid = 2230.1 were also calculated.

(a) What proportion of observed variation in fish intake can be explained by the model relationship? (Round your answer to four decimal places, if needed.)
R² =

(b) Estimate the value of σ. (Round your answer to three decimal places, if needed.)
s_e =

(c) Calculate adjusted R². (Round your answer to four decimal places, if needed.)
Adjusted R² =

Adjusted R² R².

Expert Solution