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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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 5PPS
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(P4) Helping tags: Statistics, Analysis of Relationships Among Variables, Measures of Association, Simple and Multiple Linear Regression, Path Analysis

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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
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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