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12 Cards in this Set
- Front
- Back
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Statements about population parameters |
Describes hypotheses |
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Research hypotheses |
Alternative hypotheses |
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The value in the null hypotheses comes from what? |
Assuming the status quo about the population |
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What is the significance level |
The probability of rejecting the null hypotheses when in fact it is true |
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The farther a test statistic is from 0 |
The more the null hypotheses is discredited |
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A small p-value does what? |
It discredits the null hypotheses |
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Gathering data from multiple samples |
Is not included in preparing to do a hypotheses test |
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An extreme value for the test statistic indicates |
The null hypotheses is not true |
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What does a negative test statistic mean? |
The sample proportion was less than the assumed population proportion in the null hypotheses |
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When should the null hypotheses be rejected? |
When the p-value is less than the significance level |
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What is the reason the significance level is not arbitrarily small? |
Doing so decreases the probability of correctly rejecting the null hypothesis |
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A practically significant result has what attributes |
It is both statistically significant and meaningful |
