Author Question: The effects of sample size can be corrected for by taking the SSXY value for variables X and Y and ... (Read 47 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
The effects of sample size can be corrected for by taking the SSXY value for variables X and Y and _______________ to calculate the covariance..
 a. subtracting the mean of the variable
  b. dividing it by the degrees of freedom of the sample
  c. dividing it by the standard deviations of X and Y
  d. using a chi-square test

Question 2

In hypothesis testing, the symbol typically used to specify the significance level of the test is .
 
 Indicate whether the statement is true or false



angrybirds13579

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

B
SSXY = ; it is divided by the degrees of freedom to calculate the covariance.

Answer to Question 2

F
It is .



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

For a complete list of videos, visit our video library