« previous next »

Author Question: Which of the following is a reason why we may NOT find a significant difference between two groups? ... (Read 87 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
on: Jun 20, 2018
Which of the following is a reason why we may NOT find a significant difference between two groups?
 
  a. The sample size was too small.
  b. The true mean difference between the groups was too small.
  c. The variability between the groups was too large.
  d. all of the above

Question 2

Before running an experiment, we decide to calculate power. We find that the power equals .95. What conclusion can be made?
 
  a. We should not run the experiment.
  b. 95 of the time, we will not find a significant result.
  c. We should run the experiment.
  d. We need 95 subjects to find a significant result.


Sophiapenny

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

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

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

GUIDELINES FOR ASSESSING MEMBERS OF VULNERABLE POPULATION GROUPS GUIDELINES FOR ASSESSING MEMBERS OF VULNERABLE POPULATION GROUPS
Basic Food Groups and Their Major Nutrients Basic Food Groups and Their Major Nutrients
How to find an unknown angle using reciprocal trigonometric functions How to find an unknown angle using reciprocal trigonometric functions
How to find the unknown angle of a triangle using the sine law (Part 2) How to find the unknown angle of a triangle using the sine law (Part 2)
Blood Groups and Blood Types Blood Groups and Blood Types
Find the derivative of g(z) = 4z^7 - 3z^-7 + 9z Find the derivative of g(z) = 4z^7 - 3z^-7 + 9z
Video: Prone Position

For a complete list of videos, visit our video library