« previous next »

Author Question: To find a confidence interval for the difference between the means of independent samples, when the ... (Read 120 times)

saraeharris

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
To find a confidence interval for the difference between the means of independent samples, when the variances are unknown but assumed equal, the sample sizes of the two groups must be the same.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is not a characteristic of the normal distribution?
 
  A) Symmetric
  B) Mean = median = mode
  C) Bell-shaped
  D) Equal probabilities at all values of x


Andromeda18

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

How to find the definite integral using the fundamental theorem of calculus (Part 2) How to find the definite integral using the fundamental theorem of calculus (Part 2)
How to find the domain of a function (Part 3) How to find the domain of a function (Part 3)
E9-23 Prepare income statements Explain the difference in operating income E9-23 Prepare income statements Explain the difference in operating income
To find derivative us the chain rule To find derivative us the chain rule
Find the curved line Find the curved line
Derive the following using the increment/delta method and find its slope Derive the following using the increment/delta method and find its slope
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

For a complete list of videos, visit our video library