Author Question: Dummy variables are useful because they enable you to use a single regression equation to represent ... (Read 43 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
Dummy variables are useful because they enable you to use a single regression equation to represent multiple _______________.
 
  Fill in the blank(s) with correct word

Question 2

In an experiment, confounding occurs when
 
  a. there is a main effect of the independent variable being manipulated.
  b. a second variable is unintentionally manipulated along with the independent variable so that it is not clear which variable has had an effect.
  c. there is a second dependent variable that changes as a result of the independent variable manipulation.
  d. there is no significant effect of the independent variable manipulation.



lin77x

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

groups

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

For a complete list of videos, visit our video library