CHAPTER 12 Inference for Proportions

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CHAPTER 12 Inference for Proportions Good Day!

CHAPTER 12 Inference for Proportions  

 

Steps are the same as other hypothesis tests. State null and alternative hypotheses Ho: p=p0 Ha: p>p0, or p<p0 or p≠p0 where p0= accepted value Calculate your z test statistic Find your P-value on table A, it is interpreted the same way. State whether you reject or fail to reject H0. Relate it back to your problem State probability of getting a as extreme as you did if Ho is true.

 

Confidence Level is interpreted - If we take multiple samples of the same size from the same population 95% of the intervals will contain the true population proportion. Confidence Intervals are interpreted - We are 95% confident that the interval will capture the true population proportion or Assignment: pages 581-581 Problems: 35,37,39,47,51,53,55, 59-62

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