Ok so for a quantitative chemistry lab write up I have to use error analysis. I know how to calculate a normal standard deviation and confidence interval for a set of data, but I have no idea how to do it for a standard curve. We prepared 3 standard curves for different compounds we were measuring, taking a single measurement for each, and plotting them in excel. Apparantly there's an excel function that may be able to calculate all of this for me, but I have had no luck finding it...Are there any statheads or chemists here that could help me out? THANKS!