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

Author Question: Given that on one section of the SAT the mean is 500 and the standard deviation is 100, what is the ... (Read 68 times)

segrsyd

  • Hero Member
  • *****
  • Posts: 530
on: Jun 19, 2018
Given that on one section of the SAT the mean is 500 and the standard deviation is 100, what is the approximate probability of selecting a student whose score is 400 or lower followed by selecting a student whose score is 500 or higher on the test?
 
  a. 0.005
  b. 0.022
  c. 0.045
  d. 0.08

Question 2

Describe one type of range effect and explain how a range effect can influence the results of a research study.
 
  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

vish98

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jun 19, 2018
Answer to Question 1

d

Answer to Question 2

One example of a range effect is called a ceiling effect and exists when a set of scores all cluster near the top of the scale of measurement. In this case, the scores do not allow room for any noticeable improvement. If a treatment is administered that does improve scores, the improvement will not show up in the results and the researcher will be forced to conclude that the treatment does not appear to produce a significant improvement in scores.


segrsyd

  • Member
  • Posts: 530
Reply 2 on: Jun 19, 2018
Wow, this really help

Hdosisshsbshs

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

The male reproductive system, sagittal section showing the organs of the system and their relation t The male reproductive system, sagittal section showing the organs of the system and their relation t
Subcutaneous drug administration: (a) cross section of skin showing depth of needle insertion; Subcutaneous drug administration: (a) cross section of skin showing depth of needle insertion;
Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ... Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ...
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
Overall structure of section of macula Overall structure of section of macula
Cross-section through a Femur Cross-section through a Femur
Video: The Nerve Impulse

For a complete list of videos, visit our video library