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

Author Question: A test given to a group of 30 students has a mean of 24 and a standard deviation of 3 . A second ... (Read 58 times)

cagreen833

  • Hero Member
  • *****
  • Posts: 544
A test given to a group of 30 students has a mean of 24 and a standard deviation of 3 . A second test given to the same group of students also had a mean of 24 but had a standard deviation of 4 . Based on this information, which of the following is the most valid conclusion.
 
  a. The students performed better on the second test, since the standard deviation is higher.
  b. The average on the second test is higher than on the first test.
  c. The median on the second test is higher than on the first test.
  d. The students' scores on the second test spread out more than they did on the first test.

Question 2

How did Sandra's comment in the last paragraph (paragraph 11) illustrate one of the guidelines for preparing effective rules?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joanwhite

  • Sr. Member
  • ****
  • Posts: 308
Answer to Question 1

d

Answer to Question 2

This indicates that she provides rationales for her rules.




cagreen833

  • Member
  • Posts: 544
Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)


kishoreddi

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

For a complete list of videos, visit our video library