Transcription of Statistics: An introduction to sample size calculations
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Statistics: An introduction to sample size calculations
Statistics: An introduction to sample size calculationsRosie Cornish. IntroductionOne crucial aspect of study design is deciding how big your sample should be. If you increaseyour sample size you increase the precision of your estimates, which means that, for any givenestimate / size of effect, the greater the sample size the more statistically significant theresult will be. In other words, if an investigation is too small then it will not detect resultsthat are in fact important. Conversely, if a very large sample is used, even tiny deviations fromthe null hypothesis will be statistically significant, even if these are not, in fact, practicallyimportant.
Statistics: An introduction to sample size calculations Rosie Cornish. 2006. 1 Introduction One crucial aspect of study design is deciding how big your sample should be.
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