« previous next »

Author Question: Polynomial regression is a robust method that should be among the first transformations to try on ... (Read 73 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?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Scientific Method Scientific Method
Performing Venipuncture Using the Vacutainer Method Performing Venipuncture Using the Vacutainer Method
State the transformations on the function f(x)= 4sin(x-pi)-2 and then graph two cycles below. State the transformations on the function f(x)= 4sin(x-pi)-2 and then graph two cycles below.
Linear programming problems using the simplex method. Linear programming problems using the simplex method.
The ChIPSeq method screens for specific transcription factor binding sites across a whole genome The ChIPSeq method screens for specific transcription factor binding sites across a whole genome
linear programming problem, applying simplex method and sensitivity analysis linear programming problem, applying simplex method and sensitivity analysis
Video: New DNA Strand Replication

For a complete list of videos, visit our video library