| 1 |
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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| 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 we reject Ho when Ho is actually true then it is |
- A. type - I error
- B. type - II error
- C. type - III error
- D. type - IV error
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| 4 |
Given=μ0 = 170, X̅ = 190,σ = 36 and n = 9; which statistic is appropriate? |
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| 5 |
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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| 6 |
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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| 7 |
An automobile is driven on the average on more than 1600 kilometers per year, the null hypothesis is |
- A. H<sub>o</sub> : μ = 16000 kilometers
- B. H<sub>o</sub> : μ ≤ 16000 kilometers
- C. H<sub>o</sub> : μ < 16000 kilometers
- D. H<sub>o</sub> : μ > 16000 kilometers
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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 |
A hypothesis that specifies all the value of parameter is called: |
- A. Statistical hypothesis
- B. Simple hypothesis
- C. Composite hypothesis
- D. None of these
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| 10 |
A region for which the H<sub>o</sub> is rejected is called |
- A. acceptance region
- B. rejection region
- C. critical region
- D. both b and c
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