With missing data responses in market research analyses, learning what to do with that information can be crucial in the final results.
Margin of error as popularly understood overstates the validity of research results in at least three key ways. First, those interpreting margin of error forget an important caveat. The results are estimates and typically vary within a narrow range around the actual value that would be calculated by completing a census of everyone in a […]
This is the last in a series of posts arguing that the fundamental problem with the recent US electoral polls was the failure to achieve representative samples of the population that actually showed up to vote. I hope I have been clear that achieving such a sample with current methods is no mean feat given […]