**Sample Size Still Matters **

"Stand at the door of a church on a Sunday and bid 16 men to stop, tall ones and small ones, as they happen to pass out when the service is finished; then make them put their left feet one behind the other, and the length thus obtained shall be a right and lawful rod to measure and survey the land with, and the 16th part of it shall be the right and lawful foot."- Jacob Koebel16th century

**Does a sample size of 16 have the statistical power for credible assignment results?**

**If the sample distribution is normal, a minimum sample size of 15 is required. A normal distribution will have equal mean, median and mode.**

**If the sample distribution is non-normal, a minimum sample size of 30 is required.**

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