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ISYE6414 Midterm 2 Exam Questions and Answers |100% Pass

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ISYE6414 Midterm 2 Exam Questions and Answers |100% Pass The _______________ for multiple linear regression do not have constant variance. - Answer️️ -sample residuals The ______________ for multiple linear regression have constant variance. - Answer️️ -error terms QQPlot and histogra...

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  • September 1, 2024
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, ISYE6414 Midterm 2 Exam Questions
and Answers |100% Pass


The _______________ for multiple linear regression do not have constant variance. -

Answer✔️✔️-sample residuals


The ______________ for multiple linear regression have constant variance. -

Answer✔️✔️-error terms

QQPlot and histogram are used to assess what in MLR? - Answer✔️✔️-normality

Residuals vs predictor are used to predict what in MLR - Answer✔️✔️-linearity

Residuals vs fitted values are used to assess what in MLR - Answer✔️✔️-constant

variance and independence

Points that are far from the mean of the x's are called - Answer✔️✔️-leverage points

Points that are far from the mean of the x's and y's are called - Answer✔️✔️-Influential

points

It is good practice to perform regression analysis with and without what? - Answer✔️✔️-

outliers

What is used to quantify outliers? - Answer✔️✔️-Cook's distance

How much all the values in the model change when the ith value is removed is known

as what? - Answer✔️✔️-Cook's distance




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