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AP+Statistics+Chapter+10+Section+2

AP+Statistics+Chapter+10+Section+2 - AP Statistics Chapter...

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AP Statistics Chapter 10 Section 2
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Vocab Confidence Interval Tests of significance Null hypothesis Alternative hypothesis P-value Statistically significant One-sided alternative Test statistic Significance level
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Steps for a Test 1. State the null hypothesis in terms of the population. (The statement of no difference.) 2. State the alternative hypothesis in terms of the population. (What we believe to be true.) 3. Significance level 4. Assumptions 5. Test statistic 6. P-value 7. Conclusion 8. Create a Confidence interval with a level that matches the significance level.
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Does Diet Coke lose sweetness over time?
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Scores 2, 0.4, 0.7, 2, -0.4, 2.2, -1.3, 1.2, 1.1, 2.3 Is this good evidence that the diet coke lost sweetness over time?
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1. Null hypothesis: The statement of no difference. The diet coke did not lose sweetness over time. Which would mean that the average difference between the two ratings was 0. 0 : 0 = μ H
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1. Alternative hypothesis: What we believe to be true.
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