how to find the confidence interval calculating confidence interval how does confidence interval differ between sets how to calculate true mean based on sample how do you know true mean how to find the confidence intervals between sets how can i calculate the true mean of a test how to estimate confidence interval what is the confidence interval for mean of one set how does an error of a confidence interval relate to the real mean of one set how can i know the true mean of any set how to calculate the confidence interval for a true mean of a set based on sample numbers how to calculate confidence interval for true mean of one set of n elements? how to determine true confidence interval what's the confidence interval for true mean calculating confidence intervals how to calculate confidence interval can confidence intervals be used to predict the true means of two sets of data why should the confidence interval be higher? how to find confidence interval