The Conservative Party in Ontario wanted to determine the popularity of their leader so they conducted a survey. The results were 16%, with a margin of error of +/- .03. What does a margin of error of +/- 0.03 mean? 3% of the students surveyed will most likely change their minds. the percentage of the population that was surveyed was between 13% and 19% 3% of the population was not included in the survey? The difference between the sample proportion and the population proportion is likely to be less than 3%