Author Question: Which of the following is involved in selecting the most appropriate model? a.Perform a ... (Read 88 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667

  Which of the following is involved in selecting the most appropriate model?
 

  a.Perform a residual analysis.
  b.All of these answers.
  c.Examine the model for potential violation of assumptions.
  d.Specifying possible predictor variables.

Question 2


  What is the general idea behind stepwise regression?
 

  a.To remove as much variation as possible in y while using as many x variables as possible.
  b.To minimize the variation in the x variables.
  c.To explain as much variation as possible in y while using the fewest possible x variables.
  d.To eliminate as many x variables as possible.x



Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

correct: b

Answer to Question 2


correct: c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

For a complete list of videos, visit our video library