This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In testing for differences between the means of two independent populations, the null hypothesis is ... (Read 129 times)

casperchen82

  • Hero Member
  • *****
  • Posts: 540
on: Jun 24, 2018
In testing for differences between the means of two independent populations, the null hypothesis is
 
  A) H0 : 1 - 2 = 2. B) H0 : 1 - 2 = 0. C) H0 : 1 - 2 < 2. D) H0 : 1 - 2 > 0.

Question 2

In testing for the differences between the means of 2 independent populations where the variances in each population are unknown but assumed equal, the degrees of freedom are
 
  A) n1 + n2 - 1. B) n - 2. C) n1 + n2 - 2. D) n - 1.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

InfiniteSteez

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


casperchen82

  • Member
  • Posts: 540
Reply 2 on: Jun 24, 2018
Excellent

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

The intermediate-disturbance hypothesis of community organization. The intermediate-disturbance hypothesis of community organization.
Testing the muscle strength of the wrist Testing the muscle strength of the wrist
Testing graphesthesia Testing graphesthesia
Alternative method of testing cardinal field of gaze Alternative method of testing cardinal field of gaze
Independent assortment for two traits in humans follows the same pattern of inheritance as traits in Independent assortment for two traits in humans follows the same pattern of inheritance as traits in
Light-independent reactions of photosynthesis Light-independent reactions of photosynthesis
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library