how to calculate confidence interval for a difference between two mean if _y is the transformed variable, what is the confidence interval for the variable how do you get a confidence interval for mean difference in box cox what is the difference between means and confidence intervals how to get a confidence interval for a difference what is the coefficient of confidence in a cox transformation when can we get confidence intervals what is the coefficient of the transform of a box cox transformation? when calculating mean difference in log transforms, what is the difference between the two mean how to calculate value of confidence interval what is the difference between an independent variable and a dependent variable how to calculate confidence intervals in data transforms difference between mean and confidence intervals how to calculate confidence intervals for a variable can we back transform a variable in excel why do we use a formula of confidence intervals? can we find the difference between two means and their confidence intervals how can we determine the confidence interval of an independent variable and back transform it? how to calculate confidence intervals for two groups when do you change confidence intervals for mean difference