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 31 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

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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.

Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Standard precaution guidelines. Additional guidelines/protocols may be utilized depending on the ... Standard precaution guidelines. Additional guidelines/protocols may be utilized depending on the ...
Diesel Emission Testing - Opacity Test. Diesel Emission Testing - Opacity Test.
Using a vacuum hose and a grounded test light to ground one cylinder at a time on a DIS. This works ... Using a vacuum hose and a grounded test light to ground one cylinder at a time on a DIS. This works ...
Induration measurement in a tuberculin skin test, a type IV hypersensitivity. Induration measurement in a tuberculin skin test, a type IV hypersensitivity.
Students and Money Students and Money
Video: Hemodynamics Animation

For a complete list of videos, visit our video library