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The regression equation is Duration = - 2.45 + 0.0767 Time Predictor Coef -2.4454 SE Coef T P Constant 0.2556 -9.57 0.000 Time 0.076739 0.003360 22.84 0.000 s - 0.225947 R-Sq - 95.8% Analysis of Variance Source DF SS MS F P 1 26.633 26.633 521.69 0.000 Regression Residual Error 23 1.174 Total 0.051 24 27.807 The above regression results are from the duration of Old Faithful's eruptions as a function of the time since the last eruption.

The regression equation is Duration = - 2.45 + 0.0767 Time Predictor Coef -2.4454 SE Coef T P Constant 0.2556 -9.57 0.000 Time 0.076739 0.003360 22.84 0.000 s - 0.225947 R-Sq - 95.8% Analysis of Variance Source DF SS MS F P 1 26.633 26.633 521.69 0.000 Regression Residual Error 23 1.174 Total 0.051 24 27.807 The above regression results are from the duration of Old Faithful's eruptions as a function of the time since the last eruption.

MATLAB: An Introduction with Applications
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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Can you contruct a 95% confidence interval for the Y  intercept for the regression equation. 

Then explain what do you conclude from this regression? 

The regression equation is Duration = - 2.45 + 0.0767 Time Predictor Coef SE Coef P Constant -2.4454 0.2556 -9.57 0.000 Time 0.076739 0.003360 22.84 0.000 S = 0.225947 R-Sq 95.8% Analysis of Variance Source DF SS MS F P Regression 1. 26.633 26.633 521.69 0.000 Residual Error 23 1.174 0.051 Total 24 27.807 The above regression results are from the duration of Old Faithful's eruptions as a function of the time since the last eruption.
Transcribed Image Text:The regression equation is Duration = - 2.45 + 0.0767 Time Predictor Coef SE Coef P Constant -2.4454 0.2556 -9.57 0.000 Time 0.076739 0.003360 22.84 0.000 S = 0.225947 R-Sq 95.8% Analysis of Variance Source DF SS MS F P Regression 1. 26.633 26.633 521.69 0.000 Residual Error 23 1.174 0.051 Total 24 27.807 The above regression results are from the duration of Old Faithful's eruptions as a function of the time since the last eruption.
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