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by matheusmoreira
17 days ago
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> My statistics courses are far behind me, but don't you need at least 30 data points to conclude anything? There is no fixed number. Sample size depends on the size of the set you're sampling, desired margin of error and confidence interval. If your total set has a million items, you need ~16600 samples to draw conclusions with 99% ±1% certainty. |
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