1. Confidence level is degree of belief or probability that an estimated range of values includes or covers the population parameter
Answer
Correct Answer:
True
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2. If you are predicting that your sample statistic is different from the population parameter, but you are not predicting whether it is smaller or larger, you will be conducting a ______.
Answer
Correct Answer:
Two-tailed test
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3. Which of the following is used to describe the absence of a statistical relationship between two or more variables?
Answer
Correct Answer:
Null
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4. We have more certainty in a large sample size and less certainty in a small sample size.
Answer
Correct Answer:
True
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5. As the sample size grows, the t-distribution looks more and more like the normal distribution until they are identical with a sufficiently large sample size.
Answer
Correct Answer:
True
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6. To calculate the standard error of the mean you simply divide the standard deviation by the square root of the sample size.
Answer
Correct Answer:
True
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7. To calculate the degrees of freedom for use in a t-test, you use which of the following formulas (where N = the sample size)?
Answer
Correct Answer:
N − 1
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8. Which of the following statistics measures how much variation (or imprecision) there is in the sample estimator of the mean?
Answer
Correct Answer:
Standard error of the mean
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9. Level of significance (like 0.05) indicates the chance of making a type II error.
Answer
Correct Answer:
False
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10. A type ______ error is made by failing to reject a null hypothesis when it is not true.
Answer
Correct Answer:
Two
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11. Inference refers to reasoning from available information or facts to reach a conclusion.
Answer
Correct Answer:
True
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12. In which score the number of standard deviations by which a score deviates from the mean score?
Answer
Correct Answer:
Z
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13. Error made by failing to reject a null hypothesis when it is not true is known as
Answer
Correct Answer:
Type II
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14. Error made by rejecting a null hypothesis when it is true is called
Answer
Correct Answer:
Type I
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15. A convention for testing hypotheses that focuses on the probability of making a type ____ error.
Answer
Correct Answer:
I
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16. The probability of making a type ____ error.
Answer
Correct Answer:
I
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17. Two types of hypotheses essential to hypothesis testing is called
Answer
Correct Answer:
Statistical hypothesis
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18. In which hypothesis statement about the value or values of a population parameter?
Answer
Correct Answer:
Research hypothesis
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19. In which hypothesis statement about the value or values of a population parameter?
Answer
Correct Answer:
Research hypothesis
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20. A statement that a population parameter equals a single or specific value is called
Answer
Correct Answer:
Null hypothesis
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21. Confidence interval is a range of values into which a population parameter is likely to fall for a given level of confidence.
Answer
Correct Answer:
True
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22. A statement about the value or values of a population parameter is called
Answer
Correct Answer:
Alternative hypothesis
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Political Science Research Methods MCQs | Topic-wise