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14 cards from this deck
A statistical method to test population claims using sample evidence
A statement about a population that can be tested statistically
The null hypothesis - the initial assumption being tested
No change, no difference, or no effect
The alternative hypothesis - contradicts H₀
p^=countsample size\hat{p} = \frac{\text{count}}{\text{sample size}}p^=sample sizecount
1n\frac{1}{\sqrt{n}}n1 where nnn is sample size
p^−1n<p<p^+1n\hat{p} - \frac{1}{\sqrt{n}} < p < \hat{p} + \frac{1}{\sqrt{n}}p^−n1<p<p^+n1
Write down H₀ and H₁
Calculate sample proportion p^\hat{p}p^
Find margin of error 1n\frac{1}{\sqrt{n}}n1
Calculate confidence interval
When claimed value falls within confidence interval
When claimed value falls outside confidence interval
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