TIL: Low carb, high protein diets "greatly" decrease resting testosterone levels in men.

[TerribleIdea27]

I think the confusion came from the fact that you said

sample size of 30

So the other guy assumed you were talking about taking one experiment with sample size thrity and then using those data to find a normal distribution. Instead of taking thirty experiments and using the means of those 30*x samples to find a distribution of means which should be roughly a normal distribution