« previous next »

Author Question: Polynomial regression is a robust method that should be among the first transformations to try on ... (Read 86 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
on: Jun 29, 2018
Polynomial regression is a robust method that should be among the first transformations to try on nonlinear data.
 
 Indicate whether the statement is true or false

Question 2

For a one-group t-test, the degrees of freedom are _____.
 a. n + 1
  b. n(n - 1)
  c. n - 1
  d. n(n + 1)


ergserg

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jun 29, 2018
Answer to Question 1

F
Polynomial regressions, using various powers of X, must be applied very carefully, because powers of X are highly multicollinear. It is impossible to change X by one unit without also changing X2, X3, and so forth.

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Body Part, Method of Examination, and Equipment Used During the General Physical Examination Body Part, Method of Examination, and Equipment Used During the General Physical Examination
How to stretch or compress a function using transformations How to stretch or compress a function using transformations
How to use transformations to graph quadratic equations in vertex form How to use transformations to graph quadratic equations in vertex form
How to find derivative using delta method of y=100x-13? please notice me! How to find derivative using delta method of y=100x-13? please notice me!
Generation of the F2 trihybrid phenotypic ratio using the forked-line method Generation of the F2 trihybrid phenotypic ratio using the forked-line method
Linear programming problems using the simplex method. Linear programming problems using the simplex method.
Video: Stroke volume

For a complete list of videos, visit our video library