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

Author Question: If two population variances are known, the test for differences in the two population means does not ... (Read 62 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Jun 24, 2018
If two population variances are known, the test for differences in the two population means does not require the populations to be normally distributed if the sample sizes are large.
 
  Indicate whether the statement is true or false

Question 2

If Z is a standard normal random variable, the area between Z = 0.0 and Z = 1.25 compared to the area between Z = 1.25 and Z = 2.5 will be:
 
  A) smaller.
  B) larger.
  C) the same.
  D) There is not enough information to answer this question.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

B


Jkov05

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jun 24, 2018
Thank you :)


ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

World human population growth through history illustrates an exponential growth pattern. World human population growth through history illustrates an exponential growth pattern.
Population of Major Civilizations of Europe, Asia, and Africa, AD 1500 Population of Major Civilizations of Europe, Asia, and Africa, AD 1500
Sources of income for U.S. population aged 65 and over. Sources of income for U.S. population aged 65 and over.
The Mantoux tuberculin skin test. Positive reaction. The Mantoux tuberculin skin test. Positive reaction.
Sensory Differences Between Species Sensory Differences Between Species
The Turing Test The Turing Test
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library