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Author Question: If you wish to construct 92 lower confidence bound (LCB) for the difference between population means ... (Read 86 times)

Mimi

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on: Jul 24, 2018
If you wish to construct 92 lower confidence bound (LCB) for the difference between population means in case of large samples, then the z-value you should use is approximately:
 a. 2.58
  b. 1.96
  c. 1.65
  d. 1.41
  e. 1.06

Question 2

The power and the efficiency of a test cannot be used alone to determine the choice of a test. Explain in detail.


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yeungji

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

D

Answer to Question 2

Sometimes you will be forced to use a certain test because of the data you are given. When there is a decision to be made, the final decision rests in a trade-off of three factors: (1) the power of the test, (2) the efficiency of the test, and (3) the data (and the number of data) available.


Mimi

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Reply #2 on: Jul 24, 2018
TY


yeungji

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


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