Inference for One proportion

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8 Terms

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Minimum sample size for or USA

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Rounding with minimum sample size formula

Round up

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Basics for one proportion hypothesis test

  • population parameter: p

  • Point estimate: p-hat

  • Conditions

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Majority problems

Special kind of proportion test

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Test for majority problems (more than half

No majority (even): null = 0.5

Majority =/ 0.5

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Steps for hypothesis testing

  1. Identify variables, hypothesis, claim, alpha

  2. Check conditions

  3. Find test statistic/zscorei, area, p-value, sketch

  4. Compare p value to alpha, conclusion

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Important note

Reject null hypothesis = significant difference between null and sample => STATE VALUE HIGHER OR LOWERRR (NOT JUST DIFFERENT)

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how to interpret confidence interval

we are % confident that x%-x% of ____