AP+Statistics+Chapter+10+Section+4

AP+Statistics+Chapter+10+Section+4 - AP Statistics Chapter...

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AP Statistics Chapter 10 Section 4
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Tests of significance assess the strength of evidence against the null hypothesis. We measure evidence by the p-value, which is a probability computed under the assumption that the null hypothesis is true. The alternative hypothesis enters the test only to help us see what outcomes count against the null hypothesis.
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Using a fixed significance level chosen in advance points to the outcome of the test as a decision. The transition from measuring the strength of evidence to making a decision is not a small step. Decisions should probably be left to the user rather than being built into a test. A test result should be only one among many factors that influence a decision.
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Acceptance Sampling Yet…there are circumstances that call for a decision or action as the end result of inference. A producer of something and the company to which it sells its product agree that each truckload must meet certain quality standards.
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AP+Statistics+Chapter+10+Section+4 - AP Statistics Chapter...

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