« previous next »

Author Question: Polynomial regression is a robust method that should be among the first transformations to try on ... (Read 419 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?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Palade's use of the pulse-chase method to study protein secretion Palade's use of the pulse-chase method to study protein secretion
How to evaluate third-order determinants by Minors Method (Question 1) How to evaluate third-order determinants by Minors Method (Question 1)
Derivative using delta method Derivative using delta method
Sketch the graph of each function using transformations. State the domain and range. Sketch the graph of each function using transformations. State the domain and range.
Method for creating Golden Rice 2 Method for creating Golden Rice 2
Offset Method Plot of Land with Offset Lines Offset Method Plot of Land with Offset Lines
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library