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Togus Bash
STATISTICS
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Inferential Statistics
In regression analysis, what does multicollinearity refer to?
A. High correlation between independent variables.
B. Low correlation between independent variables.
C. High correlation between dependent variables.
D. No correlation at all.
Togus Bash
STATISTICS
-
Inferential Statistics
What does a high p-value indicate?
A. Strong evidence against the null hypothesis.
B. Weak evidence against the null hypothesis.
C. Strong evidence for the null hypothesis.
D. No evidence at all.
Togus Bash
STATISTICS
-
Inferential Statistics
What is the purpose of the Bonferroni correction?
A. To adjust for multiple comparisons.
B. To increase power.
C. To decrease sample size.
D. To improve accuracy.
Togus Bash
STATISTICS
-
Inferential Statistics
Which of the following is an example of a Type II error?
A. Failing to reject a false null hypothesis.
B. Rejecting a true null hypothesis.
C. Accepting a true alternative hypothesis.
D. Rejecting a false alternative hypothesis.
Togus Bash
STATISTICS
-
Inferential Statistics
What is the main characteristic of non-parametric tests?
A. They do not assume a normal distribution.
B. They require large sample sizes.
C. They are always more powerful than parametric tests.
D. They can only be used with categorical data.
Togus Bash
STATISTICS
-
Inferential Statistics
In hypothesis testing, what does it mean to "reject the null hypothesis"?
A. Conclude there is an effect.
B. Conclude there is no effect.
C. Accept the null hypothesis.
D. None of the above.
Togus Bash
STATISTICS
-
Inferential Statistics
What is the purpose of a scatter plot in regression analysis?
A. To visualize the relationship between two variables.
B. To summarize categorical data.
C. To show frequency distribution.
D. To calculate means.
Togus Bash
STATISTICS
-
Inferential Statistics
Which of the following is a limitation of inferential statistics?
A. Requires random sampling.
B. Assumes normality.
C. Sensitive to outliers.
D. All of the above.
Togus Bash
STATISTICS
-
Inferential Statistics
What does a negative correlation indicate?
A. No relationship.
B. A direct relationship.
C. An inverse relationship.
D. A strong relationship.
Togus Bash
STATISTICS
-
Inferential Statistics
What is the purpose of a control group in an experiment?
A. To provide a baseline for comparison.
B. To manipulate the independent variable.
C. To increase sample size.
D. To ensure randomization.
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STATISTICS
Inferential Statistics
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