Author Question: The t test for the mean difference between two related populations assumes that the: A) ... (Read 50 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
The t test for the mean difference between two related populations assumes that the:
 
  A) population distribution of differences are approximately normal.
  B) population sizes are equal.
  C) sample variances are equal.
  D) sample sizes are small.

Question 2

Find the upper confidence limit of the 90 confidence interval.
 
  A) 13.81
  B) 18.24
  C) 21.59
  D) 25.89



tdewitt

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

For a complete list of videos, visit our video library