gs: Statistics, Analysis of Relationships Among Variables, Measures of Association, Simple and Multiple Linear Regression, Pa
gs: Statistics, Analysis of Relationships Among Variables, Measures of Association, Simple and Multiple Linear Regression, Pa
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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(P4) Helping tags: Statistics, Analysis of Relationships Among Variables, Measures of Association, Simple and Multiple Linear
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WILL UPVOTE, just pls help me answer the following questions in the attached image. Pls show complete solutions and explain them. Thank you!
![Consider the multiple regression model to investigate the relationship
between the number of fishes (Y) per section of the stream and the following
independent variables: dissolved oxygen (3 < oxy < 10, in mg/liter),
maximum depth (1 < maxdepth < 8, in feet), and water temperature (5<
temp < 20, in OC). The location of the stream was also considered (lowland
and upland). 7
= 23.09 +0.199*oxy + 0.3361*maxdepth +8.6730*temp + 3.8290* lowland.
Which of the following is(are) TRUE about the estimated regression coefficient for location of the
stream?
I.
II.
The location of the stream is a categorical variable, so it is represented by a dummy variable with
upland stream as the reference variable.
Holding other factors constant, the number of fishes in lowland is 3.8290 higher than upland
streams.
A. I only
B. II only
C. Both I and II
D. Neither I nor II](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6d1bf52e-33e8-4a88-aba6-54600abae93a%2Fb2b9ea04-dda5-4d53-b7c4-1f551a0201e9%2Fj7h8mjb_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the multiple regression model to investigate the relationship
between the number of fishes (Y) per section of the stream and the following
independent variables: dissolved oxygen (3 < oxy < 10, in mg/liter),
maximum depth (1 < maxdepth < 8, in feet), and water temperature (5<
temp < 20, in OC). The location of the stream was also considered (lowland
and upland). 7
= 23.09 +0.199*oxy + 0.3361*maxdepth +8.6730*temp + 3.8290* lowland.
Which of the following is(are) TRUE about the estimated regression coefficient for location of the
stream?
I.
II.
The location of the stream is a categorical variable, so it is represented by a dummy variable with
upland stream as the reference variable.
Holding other factors constant, the number of fishes in lowland is 3.8290 higher than upland
streams.
A. I only
B. II only
C. Both I and II
D. Neither I nor II
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