Regression statistics Multiple R 0.7428 R Square 0.5518 Adjusted R Square 0.5128 Standard Error 60591.9567 Observations 26 ANOVA df SS MS Regression 2 1.03955E+11 Residual 51977265516 23 84441860122 3671385223 Total 25 1.88396E+11 F 14.15739901 Significance F 9.81929E-05 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept Sq Ft -5882.7622 65587.6835 -0.0897 0.9293 -141561.2229 59.7331 54309.2083 21.2707 22101.6231 2.8082 2.4572 Beds 0.0100 0.0220 15.7313 8588.5174 129795.6985 103.7349 100029.8991 Compare the fit for this simpler model to that of the model that also includes number of bathrooms as an independent variable. The adjusted R² for the simpler model is of the model in part a. 0.49 (to 2 decimals) that is higher than the adjusted R² Multiple R 0.7429 R Square 0.5519 Adjusted R Square 0.4907 Standard Error 61948.6931 Observations 26 ANOVA SS 1.0397E+11 MS 3.4656E+10 F 9.0306E+00 22 8.4428E+10 3.8376E+09 df Regression 3 Residual Total Significance F 4.3455E-04 25 1.8840E+11 Coefficients Standard Error t Stat P-value Lower 95% Intercept Baths -5531.0144 -1386.2100 67312.9506 23143.8052 -0.0822 0.9353 -145129.5298 -0.0599 0.9528 -49383.5243 Upper 95% 134067.5011 46611.1044 Sq Ft Beds 60.2793 54797.0778 23.5813 24019.7592 2.5562 0.0180 11.3748 109.1838 2.2813 0.0326 4983.1461 104611.0095 Does the estimated regression equation provide a good fit to the data? Explain. Hint: If R2 is greater than 45%, the estimated regression equation provides a good fit. The estimated regression equation does provide a reasonable fit because the adjusted R² is 0.55

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 89E
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Regression statistics
Multiple R
0.7428
R Square
0.5518
Adjusted R Square
0.5128
Standard Error
60591.9567
Observations
26
ANOVA
df
SS
MS
Regression
2 1.03955E+11
Residual
51977265516
23 84441860122 3671385223
Total
25 1.88396E+11
F
14.15739901
Significance F
9.81929E-05
Coefficients
Standard Error
t Stat
P-value
Lower 95%
Upper 95%
Intercept
Sq Ft
-5882.7622
65587.6835
-0.0897
0.9293 -141561.2229
59.7331
54309.2083
21.2707
22101.6231
2.8082
2.4572
Beds
0.0100
0.0220
15.7313
8588.5174
129795.6985
103.7349
100029.8991
Compare the fit for this simpler model to that of the model that also includes number of bathrooms as an independent variable.
The adjusted R² for the simpler model is
of the model in part a.
0.49
(to 2 decimals) that is higher
than the adjusted R²
Transcribed Image Text:Regression statistics Multiple R 0.7428 R Square 0.5518 Adjusted R Square 0.5128 Standard Error 60591.9567 Observations 26 ANOVA df SS MS Regression 2 1.03955E+11 Residual 51977265516 23 84441860122 3671385223 Total 25 1.88396E+11 F 14.15739901 Significance F 9.81929E-05 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept Sq Ft -5882.7622 65587.6835 -0.0897 0.9293 -141561.2229 59.7331 54309.2083 21.2707 22101.6231 2.8082 2.4572 Beds 0.0100 0.0220 15.7313 8588.5174 129795.6985 103.7349 100029.8991 Compare the fit for this simpler model to that of the model that also includes number of bathrooms as an independent variable. The adjusted R² for the simpler model is of the model in part a. 0.49 (to 2 decimals) that is higher than the adjusted R²
Multiple R
0.7429
R Square
0.5519
Adjusted R Square
0.4907
Standard Error
61948.6931
Observations
26
ANOVA
SS
1.0397E+11
MS
3.4656E+10
F
9.0306E+00
22 8.4428E+10 3.8376E+09
df
Regression
3
Residual
Total
Significance F
4.3455E-04
25 1.8840E+11
Coefficients
Standard Error
t Stat
P-value
Lower 95%
Intercept
Baths
-5531.0144
-1386.2100
67312.9506
23143.8052
-0.0822
0.9353
-145129.5298
-0.0599
0.9528
-49383.5243
Upper 95%
134067.5011
46611.1044
Sq Ft
Beds
60.2793
54797.0778
23.5813
24019.7592
2.5562
0.0180
11.3748
109.1838
2.2813
0.0326
4983.1461
104611.0095
Does the estimated regression equation provide a good fit to the data? Explain. Hint: If R2 is greater than 45%, the estimated
regression equation provides a good fit.
The estimated regression equation does
provide a reasonable fit because the adjusted R² is
0.55
Transcribed Image Text:Multiple R 0.7429 R Square 0.5519 Adjusted R Square 0.4907 Standard Error 61948.6931 Observations 26 ANOVA SS 1.0397E+11 MS 3.4656E+10 F 9.0306E+00 22 8.4428E+10 3.8376E+09 df Regression 3 Residual Total Significance F 4.3455E-04 25 1.8840E+11 Coefficients Standard Error t Stat P-value Lower 95% Intercept Baths -5531.0144 -1386.2100 67312.9506 23143.8052 -0.0822 0.9353 -145129.5298 -0.0599 0.9528 -49383.5243 Upper 95% 134067.5011 46611.1044 Sq Ft Beds 60.2793 54797.0778 23.5813 24019.7592 2.5562 0.0180 11.3748 109.1838 2.2813 0.0326 4983.1461 104611.0095 Does the estimated regression equation provide a good fit to the data? Explain. Hint: If R2 is greater than 45%, the estimated regression equation provides a good fit. The estimated regression equation does provide a reasonable fit because the adjusted R² is 0.55
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