Proportion Analyst – Survey Data Analysis

Proportion Analyst is useful for determining if a significant difference exists between two proportions, which is a recurrent question when interpreting, for instance, results from marketing survey studies rather than from promotional campaigns or sales results.

Applying a two-tailed Z test for homogeneity, Proportions Manager tests equality and determines whether there is any difference in the proportion of successes in two samples. It interprets results and shows conclusions written in plain English, both on the sheet and in the user form as shown in the picture below.

This tool is part of the Survey Analysis suite, which comprises also Sample Manager, a tool for determining sample size, and CrossTab, a professional tool for running complex contingency table elaborations.