Final answer:
A confidence interval is used to estimate the proportion of homeowners in Ypsilanti who support Proposal 127 with a certain level of confidence. In this case, the estimated proportion is 36% with a 95% margin of error of +/- 6%.
Step-by-step explanation:
The given question is related to statistics and probability.
In statistics, a confidence interval is a range of values that is likely to contain the true population parameter. In this case, the confidence interval provides an estimate for the proportion of homeowners in Ypsilanti who support Proposal 127.
Based on the poll, the estimated proportion is 36% with a 95% margin of error of 6%. This means that, with 95% confidence, the true proportion of homeowners who support Proposal 127 is between 30% and 42%.