The 2017 version of the Broselow Tape incorporates revised length weight zones based on the most recent National Health and Nutrition Examination Survey (NHANES) data set. *If the healthcare provider incorporates a visual estimate of body habitus into the prediction, the accuracy of the estimate of actual patient weight is improved as confirmed in multiple studies.
Confidence intervals provide more information than point estimates. Confidence intervals for means are intervals constructed using a procedure (presented in the next section) that will contain the population mean a specified proportion of the time, typically either 95% or 99% of the time.
The error here is the error (except 1.96 replaces 2) that we used for our estimates of probability based on resampling. This confidence interval has the same interpretation as the one in the last section; i.e., we are fairly confident that the true population proportion is contained in the interval. Baseball Example. For the baseball data, Hence, the confidence interval is (.2542 - .1111, .2542 + .1111) = (.143, .365) .