a. What is the formula for the estimated regression line in this scatter plot (attached). b. based on the scatterplot is simple linear regression appropriate for these data? explain.
a. What is the formula for the estimated regression line in this scatter plot (attached). b. based on the scatterplot is simple linear regression appropriate for these data? explain.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
a. What is the formula for the estimated regression line in this
b. based on the scatterplot is simple linear regression appropriate for these data? explain.
![Bivariate Fit of kWh By Tavg
80
kWh
70
60
50
40
30
20
10
60
65
Source
Model
Error
C. Total
70
Linear Fit
Linear Fit
kWh = -97.92389 +2.0010054*Tavg
Summary of Fit
RSquare
RSquare Adj
Root Mean Square Error
Mean of Response
Observations (or Sum Wgts)
Analysis of Variance
Tavg
0.71005
0.703607
8.387763
47.02128
47
75
Sum of
DF
Squares Mean Square
1
7753.023
7753.02
45 3165.955
70.35
46 10918.979
Parameter Estimates
80
F Ratio
110.1993
Prob > F
<.0001*
Term
Estimate Std Error t Ratio Prob>|t|
Intercept -97.92389 13.86158 -7.06 <.0001*
Tavg 2.0010054 0.190616 10.50 .0001*
85](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F62f6355a-05e6-4234-9d59-a73a1309b418%2F342468a3-6a2e-4107-aedd-49bcbe8368a1%2F32u1gnc_processed.png&w=3840&q=75)
Transcribed Image Text:Bivariate Fit of kWh By Tavg
80
kWh
70
60
50
40
30
20
10
60
65
Source
Model
Error
C. Total
70
Linear Fit
Linear Fit
kWh = -97.92389 +2.0010054*Tavg
Summary of Fit
RSquare
RSquare Adj
Root Mean Square Error
Mean of Response
Observations (or Sum Wgts)
Analysis of Variance
Tavg
0.71005
0.703607
8.387763
47.02128
47
75
Sum of
DF
Squares Mean Square
1
7753.023
7753.02
45 3165.955
70.35
46 10918.979
Parameter Estimates
80
F Ratio
110.1993
Prob > F
<.0001*
Term
Estimate Std Error t Ratio Prob>|t|
Intercept -97.92389 13.86158 -7.06 <.0001*
Tavg 2.0010054 0.190616 10.50 .0001*
85
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