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What is the function of a critical value in hypothesis testing?
What is the function of a critical value in hypothesis testing?
- Defining the threshold of statistical significance in a statistical test.
- Determining the upper and lower bounds of a confidence interval.
- Identifying if the result is statistically significant for the null hypothesis to be rejected. (correct)
- Measuring the probability of obtaining observed results.
How is the decision to reject the null hypothesis made based on the test statistic?
How is the decision to reject the null hypothesis made based on the test statistic?
- If the p-value is greater than α.
- If the computed value of the test statistic falls into the critical (rejection) region. (correct)
- If the observed test statistic falls into the critical region.
- If the p-value is less than or equal to a specified level of significance α.
What is the purpose of a p-value in hypothesis testing?
What is the purpose of a p-value in hypothesis testing?
- Measuring the probability of obtaining observed results assuming the null hypothesis is true. (correct)
- Defining the upper and lower bounds of a confidence interval.
- Determining the threshold of statistical significance in a statistical test.
- Identifying if the result is statistically significant for the null hypothesis to be rejected.
When is the null hypothesis rejected based on the p-value?
When is the null hypothesis rejected based on the p-value?
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What is another term for the critical region in hypothesis testing?
What is another term for the critical region in hypothesis testing?
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What type of distribution does the z-statistic follow in a z-test?
What type of distribution does the z-statistic follow in a z-test?
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When is a z-test considered best to be used?
When is a z-test considered best to be used?
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What does a z-score represent?
What does a z-score represent?
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In what type of test are t-tests best performed?
In what type of test are t-tests best performed?
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What is the measurement of statistical significance in hypothesis testing?
What is the measurement of statistical significance in hypothesis testing?
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