| 1 |
An example in a two-sided, alternative hypothesis is: |
- A. H<sub>1</sub> :u < 0
- B. H<sub>1</sub> : u > 0
- C. H<sub>1</sub> L u <u>></u> 0
- D. H<sub>1</sub> : u ≠ 0
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| 2 |
1 -&=nbsp;α is call: |
- A. Confidence coefficient
- B. Power of the test
- C. Size of the test
- D. Level of significance
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| 3 |
If Ho:π >πo , H1:π <πo and level of significance is=α then Ho will be rejected if |
- A. Z < Z=α
- B. Z=α/2 < Z
- C. Z > Z1-α
- D. Z < Z1-α
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| 4 |
1 - α is the probability associated with: |
- A. Type-I error
- B. Type-II error
- C. Level of confidence
- D. Level of significance
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| 5 |
A statistical hypothesis is an assertion or conjecture about the distribution of random variables |
- A. one
- B. two
- C. one or more
- D. three
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| 6 |
A statistic on the basis of which a decision is made about the hypothesis of interest is called |
- A. critical region
- B. test statistic
- C. parameter
- D. rejection region
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| 7 |
Suppose that the null hypothesis is true and it is rejected, is known as: |
- A. α type-I error, and its probability is β
- B. α type-I error, and its probability is α
- C. α type-II error, and its probability is α
- D. α type-II error, and its probability is β
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| 8 |
The alternative hypothesis is also called: |
- A. Null hypothesis
- B. Statistical hypothesis
- C. Research hypothesis
- D. Simple hypothesis
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| 9 |
Which hypothesis is always in an inequality form? |
- A. Simple hypothesis
- B. Alternative hypothesis
- C. Null hypothesis
- D. Composite hypothesis
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| 10 |
P(type II error) is equal to: |
- A. α
- B. β
- C. 1 - α
- D. 1 - β
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