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education/statistics/Hypothesis Tests.md
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@ -64,7 +64,7 @@ Investigators should not:
If $n$ tests are made, you can expect that $n * p$ tests are statistically significant (an outlier/unusual result). If $n$ tests are made, you can expect that $n * p$ tests are statistically significant (an outlier/unusual result).
Data snooping is **a form of statistical bias manipulating data or analysis to artificially get statistically significant results**. Data snooping is **a form of statistical bias manipulating data or analysis to artificially get statistically significant results**.
Reliable investigators test their conclusions on an independant batch of data Reliable investigators test their conclusions on an independent batch of data
(Ch 28-29, stat 1040) (Ch 28-29, stat 1040)
## Goodness of fit tests ($\chi ^2$) ## Goodness of fit tests ($\chi ^2$)