Author Question: Which of the following is involved in selecting the most appropriate model? a.Perform a ... (Read 95 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?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

For a complete list of videos, visit our video library