Author Question: To increase power, the easiest variable to control in designing an experiment is usually a. the ... (Read 19 times)

AEWBW

  • Hero Member
  • *****
  • Posts: 579
To increase power, the easiest variable to control in designing an experiment is usually
 
  a. the difference between the population means.
  b. the sample size.
  c. the sample standard deviation.
  d. the shape of the distribution.

Question 2

When we calculate the power for a number of different experimental designs, the calculations depend upon
 
  a. a different approach to each kind of problem.
  b. the way we use the tables.
  c. the number of subjects we have.
  d. the same basic steps, but with slightly different formulae.



jonathanballen97

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

B

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

For a complete list of videos, visit our video library