This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following statements about stepwise regression is true? a.Once a variable is ... (Read 140 times)

Zulu123

  • Hero Member
  • *****
  • Posts: 525
on: Jul 24, 2018

  Which of the following statements about stepwise regression is true?
 

  a.Once a variable is chosen for the model, it will never be removed.
  b.The coefficient of each variable in the model remains the same as new variables are added.
  c.If two independent variables are highly correlated, only one of them will enter the equation.
  d.After computing the simple regression model for each independent variable, all variables whose F-statistics are higher than the F-to-enter are immediately added to the model.

Question 2


  When are lagged predictor variables most commonly used?
 

  a.In a analysis of variance.
  b.In a simple linear regression model.
  c.In an exponential model.
  d.In a time series regression model.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jointhecircus

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 24, 2018
Answer to Question 1

correct: c

Answer to Question 2

correct: d


Zulu123

  • Hero Member
  • *****
  • Posts: 525
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


jointhecircus

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

True Friendship True Friendship
Adapoids and omomyoids had longer snouts and are the first “true” primates. Adapoids and omomyoids had longer snouts and are the first “true” primates.
The location of the variable fuel sensor can vary, depending on the make and model of vehicle, but ... The location of the variable fuel sensor can vary, depending on the make and model of vehicle, but ...
How to find the derivative of a function when the base and exponent contain a variable x^x How to find the derivative of a function when the base and exponent contain a variable x^x
True Dover Sole True Dover Sole
Anterosuperior view of true pelvis (blue) Anterosuperior view of true pelvis (blue)
Video: Heart Chambers

For a complete list of videos, visit our video library