Statistics and Hypothesis Testing
Statistics and Hypothesis Testing
Statistics and Hypothesis Testing
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Size of a test: probability of erring in rejection<br />
By pure sampling chance, one time out of twenty, or 5 percent of<br />
the time, the data will reject the null hypothesis even though the<br />
null hypothesis is true. For more sensitive matters than mere social<br />
science, a higher st<strong>and</strong>ard (lower p-value) may be required.