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...
, 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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