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Author Question: For some value of z, the probability that a standard normal variable is below z is 0.2090 . The ... (Read 63 times)

NguyenJ

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on: Jul 24, 2018
For some value of z, the probability that a standard normal variable is below z is 0.2090 . The value of z is:
 a. 0.81
  b. 0.31
  c. 0.31
  d. 1.96
  e. 1.62

Question 2

When the necessary conditions are met, a two-tail test is being conducted to test the difference between two population proportions. If the value of the test statistic is 2.05, then the p-value is:
 a. 0.4798
  b. 0.0404
  c. 0.2399
  d. 0.0202
  e. 0.1982


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Madisongo23

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

A

Answer to Question 2

B


NguyenJ

  • Member
  • Posts: 516
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

xiazhe

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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