« previous next »

Author Question: The first 10 students who arrived for the Friday lecture filled out a questionnaire on their ... (Read 77 times)

EY67

  • Hero Member
  • *****
  • Posts: 531
on: Jun 20, 2018
The first 10 students who arrived for the Friday lecture filled out a questionnaire on their attitudes toward the instructor. The first 10 who were late for the lecture were spotted, and afterward filled out the same questionnaire. The appropriate design for testing the significance of the difference between the means is
 
  a. related samples t-test. c. one-sample t-test.
  b. independent samples t-test. d. z-test.

Question 2

Which of the following is not one of the assumptions of the t-test for independent samples?
 
  a. The populations of raw scores form normal distributions.
  b. Their dependent scores measure an interval/ratio variable.
  c. There is homogeneity of variance.
  d. The standard deviation of at least one of the populations is known.


lindahyatt42

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

EY67

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jun 20, 2018
Thank you!


lindahyatt42

  • Sr. Member
  • ****
  • Posts: 322
Reply #3 on: Jun 20, 2018
Happy to help


« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

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?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Cant wait for Friday! Cant wait for Friday!
Two wells are filled with related or partially identical antigens. The well on the left contains an ... Two wells are filled with related or partially identical antigens. The well on the left contains an ...
Students and Money Students and Money
A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ... A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ...
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Insect tracheal system. Chitin rings reinforce branching, air-filled tubes in such respiratory syste Insect tracheal system. Chitin rings reinforce branching, air-filled tubes in such respiratory syste
Video: Ionic bonds - role of ions in the body

For a complete list of videos, visit our video library