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Weekly Quiz - 1 (Predictive Modeling) Type: Graded QuizAttempts: 1/1Questions: 10Time: 20mQuestion No: 1 Degree of freedomSum of squaresMean of the squaresRegression 1 1258.548639 (SSR) 1258.548639 (MSR) Residual 6 773.4513612 ( SSE) 128.9085602 (MSE) Total 7 2032 (SST) Based on the above Table what is the value of F Statistic? 1.6260.619.76Note: The F value is the ratio of the mean regression sum of squares (MSR) divided by the mean error sum of squares (MSE) So F Statistic is 1258.548639 / 128.9085602 = 9.76 (rounded to 2 decimal places). Question No: 2 Correlation Coefficient takes values between +1 and -1. TrueFalse Note: Correlation coefficient formulas are used to find how strong a relationship is between data. The formulas return a value between -1 and 1.
Question No: 3 As per assumptions of Linear Regression: Variance of the error terms should be HeteroscedasticHomoscedasticNote: The error terms should be Homoscedastic i.e. the error terms should have constant variance across different values of independent variable. Question No: 4 DfSum of squaresMean of the squaresRegression 1258.548639 1