Based on a sample size of 80 I've calculated the CV% and Standard Deviation for a particular measurement. Those statistics represent a Marketing Specification. Now, I would like to make the same measurement, but only use 10 samples. Is there a way to calculate (95% confidence), perhaps using Chi Square Tables, what an acceptable %CV and Standard Deviation would now be using only 10 samples. In other words, if the CV% for the measurement was, say 2.0% using 80 samples, I imagine an acceptable CV% using 10 samples would be higher. But how much higher.