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Definition
| the claim being assessed in a hypothesis test; usually it is a statement of "no change from the traditional value," "no effect," "no difference," or "no relationship"; for a claim to be a testable null hypothesis, it must specify a value for some population parameter that can form the basis for assuming a sampling distribution for a test statistic |
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Definition
| the alternative hypothesis proposes what we should conclude if we find the null hypothesis to be unlikely |
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Term
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Definition
| an alternative hypothesis is two-sided (Ha: p does not equal p0) when we are interested in deviations in either direction away from the hypothesized parameter value |
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| an alternative hypothesis is one-sided when we are interested in deviations in only one direction away from the hypothesized parameter value |
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Term
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Definition
| the probability of observing a value for a test statistic at least as far from the hypothesized value as the statistic value actually observed if the null hypothesis is true; a small P-value indicates either that the observation is improbable or that the probability calculation was based on incorrect assumptions |
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Term
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Definition
| a test of the null hypothesis that the proportion of a single sample equals a specified value by referring the statistic z = p-hat-p0/SD(p-hat) to a Standard Normal model |
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