Term
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Definition
| A claim about the value of a population characteristic. |
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Term
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Definition
| The hypothesis initially assumed to be true. Population characteristic = hypothesized value |
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Term
| Alternative hypothesis, Ha |
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Definition
| A hypothesis that specifies a claim that is contradictory to Ho and is judged the more plausible claim when Ho is rejected. |
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Term
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Definition
| Rejection of Ho when Ho is true, denoted by alpha. |
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Term
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Definition
| Failure to reject Ho when Ho is false, denoted by beta. |
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Term
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Definition
| The quantity computed from sample data and used to make a decision between Ho and Ha. |
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Term
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Definition
| The probability, computed assuming Ho to be true, of obtaining a value of the test statistic at least as contradictory to Ho as what actually resulted. Ho is rejected if P-Value is less than or equal to alpha and not rejected if P-value is greater than alpha. (alpha is the significance level.) |
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Term
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Definition
| The power of a test is the probability of rejecting the null hypothesis. Power is affected by the size of the difference between the hypothesized value and the true value, the sample size, and the significance level. |
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