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Author Question: In a two-tail test for the population proportion, if the null hypothesis is rejected when the ... (Read 182 times)

bobypop

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on: Jun 24, 2018
In a two-tail test for the population proportion, if the null hypothesis is rejected when the alternative hypothesis is true:
 A. a Type I error is committed.
  B. a Type II error is committed.
  C. a correct decision is made.
  D. a one-tail test should be used instead of a two-tail test.

Question 2

In order to determine the p-value, which of the following is not needed?
 A. The level of significance.
  B. Whether the test is one-tail or two-tail.
  C. The value of the test statistic.
  D. All of these choices are true.


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anoriega3

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

Analysis:
A. Incorrect. If the null hypothesis is rejected when the alternative hypothesis is true a correct decision is made.
B. Incorrect. If the null hypothesis is rejected when the alternative hypothesis is true a correct decision is made.
C. Correct. If the null hypothesis is rejected when the alternative hypothesis is true a correct decision is made.
D. Incorrect. If the null hypothesis is rejected when the alternative hypothesis is true a correct decision is made.
ANSWER : C

Answer to Question 2

Analysis:
A. Correct. In order to determine the p-value the level of significance is not needed.
B. Incorrect. In order to determine the p-value the level of significance is not needed.
C. Incorrect. In order to determine the p-value the level of significance is not needed.
D. Incorrect. In order to determine the p-value the level of significance is not needed.
ANSWER : A


bobypop

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Reply 2 on: Jun 24, 2018
Wow, this really help

kjohnson

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Reply 3 on: Yesterday
Excellent

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