Changes in version 2020-07-02 Minor Changes: - Retired wtd.boxplot function that was imported from ENmisc package. The ENmisc package has been archived and is no longer suppported. Changes in version 2018-10-19 Minor Changes: - Fixed plotmeansC function to work properly with either data frame and sample weights (as shown in text), or design dataset Changes in version 2018-08-27 Minor Changes: - Fixed xtp.chi2 function to work properly with sample weights Minor Changes: - Fixed prop.testC function to work if user does not specify weights Changes in version 2018-07-11 Major Changes: - Updated function documentation with working examples. - Improved layout of statistical test results - Complete documentation of four sample datasets - Converted to two-tailed t and z tests - Added custom warnings when design datasets needed Changes in version 2016-10-19 Major Changes: - A companion to Pollock and Edwards, An R Companion to Essentials of Political Analysis.