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Author Question: If the standard normal deviate of a random variable value of x = 2 is z = 2, while the standard ... (Read 38 times)

madam-professor

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on: Jul 24, 2018
If the standard normal deviate of a random variable value of x = 2 is z = 2, while the standard deviation of the random variable x equals 2, then the mean of x is:
 a. 6
  b. 4
  c. 8
  d. 2
  e. 0

Question 2

If you wish to estimate the difference between two population means using two independent large samples, the 90 confidence interval estimate can be constructed using which of the following critical values?
 a. 1.96
  b. 2.33
  c. 2.58
  d. 1.645
  e. 1.28


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Brenm

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

A

Answer to Question 2

D


madam-professor

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Reply #2 on: Jul 24, 2018
TY


Brenm

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Reply #3 on: Jul 24, 2018
You're welcome


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