Author Question: Assuming a standard normal distribution is appropriate, what is the approximate probability that a ... (Read 80 times)

dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
Assuming a standard normal distribution is appropriate, what is the approximate probability that a z-score is greater than or equal to 2.33? Said another way, what is P(Z  2.33)?
 a. 0.99
  b. 0.01
  c. 0.15
  d. 0.25

Question 2

Suppose a 95 confidence interval for the proportion of Americans who exercise regularly is 0.29 to 0.37 . Which one of the following statements is false?
 a. It is reasonable to say that more than 25 of Americans exercise regularly.
  b. It is reasonable to say that more than 40 of Americans exercise regularly.
  c. An acceptable hypothesis is that about 33 of Americans exercise regularly.
  d. It is reasonable to say that fewer than 40 of Americans exercise regularly.



raili21

  • Sr. Member
  • ****
  • Posts: 324
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

For a complete list of videos, visit our video library