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This is a common misunderstanding of the statistics. The sample size is more a function of the target variance and the confidence level, not as much on the over
by drivebycomment 6y ago
This is a common misunderstanding of the statistics. The sample size is more a function of the target variance and the confidence level, not as much on the overall population. 81k, if picked properly, would be sufficient for their purpose.
- NoOneNew 6y agoOkay, what are the rules to determining the proper sample? How can you objectively determine if one sample is better or worse than another?
- drivebycomment 6y agoIf you are asking about sample size selection, you can use: http://www.tools4dev.org/resources/how-to-choose-a-sample-size http://www.tools4dev.org/resources/how-to-choose-a-sample-si... If you want to evaluate quality of a sample, that's an entirely different issue. You may want to look up different sampling methods.