Author Question: An exam is given to both the fourth period class and the sixth period class. If a student's score is ... (Read 154 times)

cagreen833

  • Hero Member
  • *****
  • Posts: 544
An exam is given to both the fourth period class and the sixth period class. If a student's score is at the 30th percentile in the fourth period class but at the 60th percentile in the sixth period class, which one of the following statements is true?
 a. Students in the sixth period class generally performed better on the exam than the students in the fourth period class.
  b. A person whose score is at the 15th percentile in the fourth period class will have a score at the 30th percentile in the sixth period class.
  c. A person whose score is at the 70th percentile in the sixth period class will have a score at the 40th percentile in the fourth period class.
  d. Students in the fourth period class generally performed better on the exam than students in the sixth period class.
  e. None of these.

Question 2

When we test a null hypothesis about the difference between two population means, using two independent samples, the test statistic used will be the difference between the observed difference of the sample means and the hypothesized difference of the population means, divided by the estimated standard error.
  Indicate whether the statement is true or false



ebonylittles

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

D

Answer to Question 2

T



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

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

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library