Question: The ols() method in statsmodels module is used to fit a multiple regression model using Quality as the response variable and Speed and Angle as

 The ols() method in statsmodels module is used to fit amultiple regression model using "Quality" as the response variable and "Speed" and"Angle" as the predictor variables. The output is shown below. A textversion is available. What is the correct regression equation based on thisoutput? What is the coefficient of determination? Select one. OLS Regression Results

Dep. Variable: Quality R-squared: 0. 978 Mode | : OLS Adj. R-squared:0. 975 Method : Least Squares F-statistic: 332.2 Date : Fri ,16 Aug 2019 Prob (F-statistic) : 3.80e-13 Time : 12:49:37 Log-Likelihood: -21.142 No. Observations : 18 AIC : 48. 28 Df Residuals: 15BIC: 50. 95 of Model: Covariance Type: nonrobust coef std err t

The ols() method in statsmodels module is used to fit a multiple regression model using "Quality" as the response variable and "Speed" and "Angle" as the predictor variables. The output is shown below. A text version is available. What is the correct regression equation based on this output? What is the coefficient of determination? Select one. OLS Regression Results Dep. Variable: Quality R-squared: 0. 978 Mode | : OLS Adj. R-squared: 0. 975 Method : Least Squares F-statistic: 332.2 Date : Fri , 16 Aug 2019 Prob (F-statistic) : 3.80e-13 Time : 12:49:37 Log-Likelihood: -21. 142 No. Observations : 18 AIC : 48. 28 Df Residuals: 15 BIC: 50. 95 of Model: Covariance Type: nonrobust coef std err t P>It| [O. 025 0. 975] Intercept 0. 5382 0. 473 1.137 0. 273 0. 471 1. 547 Speed -1. 9046 0. 176 -10 .834 0 . 000 -2.279 -1. 530 Angle 4. 0280 0. 178 22.574 0. 000 3. 648 4. 408 Omnibus : 4. 358 Durbin-Watson: 2. 121 Prob (Omnibus) : 0. 113 Jarque-Bera (JB) : 1. 414 Skew: 0 . 082 Prob (JB) : 0. 493 Kurtosis : 1.637 Cond. No. 14.4 Quality = 0.5382 - 1.9046 Speed + 4.0280 Angle coefficient of determination = 0.978 Quality = 0.473 + 0.176 Speed + 0.178 Angle coefficient of determination = 0.978 Quality = 0.473 + 0.176 Speed + 0.178 Angle coefficient of determination = 332.2 Quality = 0.5382 -1.9046 Speed + 4.0280 Angle coefficient of determination = 332.2Which Python module and method are used to create a multiple regression model for a given data set? Select one. O ols method from scipy module O linregress method from scipy module O ols method from statsmodel module O linregress method from statsmodel moduleThe ols() method in statsmodels module is used to fit a multiple regression model using "Exam4" as the response variable and "Exam1", "Exam2", and "Exam3" as predictor variables. The output is shown below. A text version is available. What is the correct regression equation based on this output and what is the coefficient of determination? Select one. OLS Regression Results Dep. Variable: Exam4 R-squared: 0. 178 Mode | : OLS Adj. R-squared: 0. 125 Method: Least Squares F-statistic: 3. 329 Date: Fri, 16 Aug 2019 Prob (F-statistic) : 0. 0276 Time : 12 : 38: 46 Log-Likelihood: -169. 85 No. Observations : 50 AIC : 347.7 Of Residuals : 46 BIC: 355. 4 of Model : Covariance Type: nonrobust coef std err P>It| [0 . 025 0. 975] Intercept 46. 2612 10.969 4. 217 0. 000 24. 181 68. 341 Exam1 0. 1742 0. 120 1. 453 0. 153 -0. 067 0. 416 Exam2 0. 1462 0. 078 1.873 0. 067 -0. 011 0. 303 Exam3 0. 0575 0. 053 1. 085 0 . 284 -0. 049 0. 164 Omni bus : 0. 886 Durbin-Watson: 1. 530 Prob (Omni bus) : 0. 642 Jarque-Bera (JB) : 0. 738 Skew: 0. 290 Prob (JB) : 0. 691 Kurtosis : 2 . 868 Cond. No. 1.41e+03 Exam4 = 46.2612 + 0.1742 Exam1 + 0.1462 Exam2 + 0.0575 Exam3 coefficient of determination = 0.178 Exam4 = 46.2612 + 0.1742 Exam1 + 0.1462 Exam2 + 0.0575 Exam3 coefficient of determination = 3.329 Exam4 = 10.969 + 0.120 Exam1 + 0.078 Exam2 + 0.053 Exam3 coefficient of determination = 0.178 Exam4 = 10.969 + 0.120 Exam1 + 0.078 Exam2 + 0.053 Exam3 coefficient of determination = 3.329Suppose a multiple regression model is fitted into a variable called model. Which Python method below returns fitted values for a data set based on a multiple regression model? Select one. O model.values O fittedvalues.model O model.fittedvalues O values.modelWhich of the following choices correctly identifies the following QQ plots for the normality of residuals assumption? Select one. Sample In no ntic's harnple quantize. -3 -2 -1 D 1 2 3 Inmrelural quaTIIES Thmtemal qua-Miles A B c. Both graphs show residuals with a distribution that is not Normal. (W, Graph A shows residuals with a distribution that more closely approximates a \\_/ Normal distribution than Graph B. (W, Graph B shows residuals with a distribution that more closely approximates a K._./ Normal distribution than Graph A. F\". Graphs A and B both show residuals with distributions that closely approximate L] a Normal distribution

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