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

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 66 times)

cagreen833

  • Hero Member
  • *****
  • Posts: 544
on: Jun 20, 2018
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
Reply #1 on: Jun 20, 2018
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
:D TYSM

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

The heme group The heme group
Monitoring and Following Up on Laboratory Test Results Monitoring and Following Up on Laboratory Test Results
How to quickly find the vertex of a quadratic equation that is in standard form How to quickly find the vertex of a quadratic equation that is in standard form
Drinking Alcohol use by college students Drinking Alcohol use by college students
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
Performing the whisper test Performing the whisper test
Video: Introduction to Herpes

For a complete list of videos, visit our video library