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Author Question: Assuming a standard normal distribution is appropriate, what is the approximate probability that a ... (Read 83 times)

dalyningkenk

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on: Jul 24, 2018
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

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

B


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