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Togus Bash
STATISTICS
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Inferential Statistics
What is the formula for the standard error of the mean?
A. s/vn.
B. s*n.
C. n/s.
D. s?/n.
Togus Bash
STATISTICS
-
Inferential Statistics
What does a Type I error represent?
A. Rejecting a true null hypothesis.
B. Accepting a false null hypothesis.
C. Rejecting a false null hypothesis.
D. Accepting a true null hypothesis.
Togus Bash
STATISTICS
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Inferential Statistics
Which of the following indicates a strong positive correlation?
A. 0.
B. 0.5.
C. 0.8.
D. -0.9.
Togus Bash
STATISTICS
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Inferential Statistics
What is the purpose of a confidence interval?
A. To estimate the mean of a sample.
B. To estimate the range of a population parameter.
C. To test a hypothesis.
D. To determine causation.
Togus Bash
STATISTICS
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Inferential Statistics
What does the Central Limit Theorem state?
A. Sample means will always be normal.
B. The distribution of sample means approaches normality as sample size increases.
C. All populations are normally distributed.
D. Large samples eliminate sampling error.
Togus Bash
STATISTICS
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Inferential Statistics
Which of the following is NOT a type of hypothesis test?
A. t-test.
B. ANOVA.
C. Regression analysis.
D. Chi-square test.
Togus Bash
STATISTICS
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Inferential Statistics
In a two-tailed test, what is the significance level typically used?
A. 0.01.
B. 0.05.
C. 0.1.
D. 0.15.
Togus Bash
STATISTICS
-
Inferential Statistics
What does a p-value represent in hypothesis testing?
A. Probability of the null hypothesis being true.
B. Probability of obtaining the observed result.
C. Probability of making a Type I error.
D. Probability of making a Type II error.
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