This topic contains a solution. Click here to go to the answer

Author Question: With a known population mean of 75 and a known standard error of the mean of 5.00, what is the ... (Read 47 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
With a known population mean of 75 and a known standard error of the mean
  of 5.00, what is the probability of selecting at random a sample whose mean is
  70 or less?
 
  What will be an ideal response?

Question 2

When the 2 by 2 chi square contingency table contains expected frequencies
  of less than 5, most statisticians agree that
 
  a. the Yates correction must be applied
  b. coefficient of contingency must be applied
  c. the degrees of freedom then must increase by 5
  d. the chi square should not be calculated



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nixon_s

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

p=.16

Answer to Question 2

d





 

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?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

For a complete list of videos, visit our video library