Comparing population proportions requires a Chi-Squared test; however, R does not provide the confidence intervals for differences between the proportions using the Marascuilo Procedure.

CITATIONS:

L. A. Marascuilo & M. McSweeney, Nonparametric and distribution-free methods for the social sciences. (Belmont, California: Wadsworth Publ. Co., 1975)

(n.d.). Retrieved from https://www.itl.nist.gov/div898/handbook//prc/section4/prc474.htm

 Usage: PopPropTest(Dataset,conf=.95, sort_results=FALSE, round_digits = 3)

Example: PopPropTest(df, .95, F, 4)
# Conducts population proportion tests and provides Confidence Interval using Marascuilo

Download the file: PopPropTest.R