Author Question: A survey can collect information using which of the following techniques? a. telephone b. ... (Read 52 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
A survey can collect information using which of the following techniques?
 a. telephone
  b. face-to-face interviews
  c. mail
  d. all of these choices

Question 2

If additional independent (X) variables are added into the regression equation, r2 will always get larger. To correct for this situation, statisticians have developed the _______________, which is not so easily influenced by additional variables.
 a. least sum-of-squares c. standard error
  b. r2-adjusted d. coefficient of determination



Brenm

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

D

Answer to Question 2

B
r2-adjusted was developed to prevent r2 from automatically increasing by just adding additional X variables.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

For a complete list of videos, visit our video library