how to do confidence intervals on a simple observation what is the confidence interval of an independent random variable when to determine confidence intervals calculate confidence intervals when to use confidence interval how do I find confidence intervals what is the confidence interval how to compute confidence intervals from a single observation? how to calculate confidence interval what is the confidence interval of a single observation what is confidence interval r how to compute confidence intervals of a correlated variable how to compute confidence interval what is the confidence interval what is the confidence interval for a ratio of a variable? how to determine confidence interval in confidence interval how to calculate confidence interval when do you need to estimate confidence interval how do you determine confidence intervals how do i estimate a confidence interval