The decline of salmon fisheries along the Columbia River in Oregon has caused concern amongboth commercial and recreational fishermen. Part of the decline is due to predatory squawfishwho consume young salmon. The data below represent the maximum size of the salmonconsumed by a northern squawfish, y, and the length of the northern squawfish, = (both inmm).XY270287 318 344 375 386 414 450 468 470 47582 85 94 127 141 157 165 216 219 238 249hat is the value of r? (Give your answer rounded to 4 decimal places)does this indicate about the relationship between the two variables?Mac a) What to the value of rt (Give your answer rounded to 4 decimal places)What does this indicate about the relationship between the two variables?b) Determine the linear regression equation for this data.Round each value to the nearest thousandth.c) Use your linear regression equation-to estimate the maximum size of the salmon consumed bya squawfish whose length is 392 mm.A squawfish with length 392 mm consumes a salmon with maximum size of approximatelymm.Round your answer to the nearest mm.d) Interpret the meaning of the slope of this regression model.e) If appropriate, interpret the meaning of the y-intercept. If not appropriate, explain why.

The paired observations for the is given as…

Answered: The decline of salmon fisheries along…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose a researcher collects data on the air pollution levels, measured in milligrams per cubic meter, for both urban and rural areas in 35 states. The data is plotted with urban air pollution levels on the horizontal axis and rural air pollution levels on the vertical axis. Nevada is an outlier in the ?x‑direction. What must be true about this state? The urban air pollution levels for this state are much higher or lower than the rest of the states in the data set. The rural air pollution levels for this state are much higher or much lower than the rest of the states in the data set. This state is an influential observation. The rural air pollution levels for this state are much higher or lower than other states in the data set that have similar urban air pollution levels. The absolute value of the residual of this state is large.
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