95% confidence is for 2 standard deviations. i.e. 44%-52% in your example. That’s assuming this is a normal distribution with a st dev of 2% (which may be too small).
95% confidence is for 2 standard deviations. i.e. 44%-52% in your example. That’s assuming this is a normal distribution with a st dev of 2% (which may be too small).