Perspiration information was collected from a random sample…
Perspiration information was collected from a random sample of 20 healthy females. For each subject they have information on sweat rate, sodium content in the sweat and potassium content in the sweat. Below provided are interval estimates for corresponding means calculated at the individual 90% confidence level. Mean Lower Bound Upper Bound Sweat rate 3.98 5.30 Sodium 33.93 50.87 Potassium 9.23 10.70 What is meant by “individual” 90% confidence here? How is this different from “simultaneous” confidence interval? Without doing any modifications, if these intervals are to be interpreted as Bonferroni simultaneous intervals, what confidence level would be applied to each them?