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Author Question: For a one-tailed test (lower tail) at 89.8 confidence, Z = a. -1.27 b. -1.53 c. -1.96 d. ... (Read 99 times)

fahad

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For a one-tailed test (lower tail) at 89.8 confidence, Z =
 a. -1.27
  b. -1.53
  c. -1.96
  d. -1.64

Question 2

For a two-tailed test at 98.4 confidence, Z =
 a. 1.96
  b. 1.14
  c. 2.41
  d. 0.8612



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chreslie

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Answer to Question 1

A

Answer to Question 2

C




chreslie

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