Final answer:
The truth of the statement regarding homeowners in Ypsilanti's support for Proposal 127 depends on statistical data, specifically the result of surveys or polls and the confidence interval used.
Step-by-step explanation:
The statement, '95% of all homeowners in Ypsilanti support Proposal 127', cannot be validated as true or false without relevant statistical data from Ypsilanti. Typically, such assertions are based on the results of surveys or polls, which employ confidence intervals to estimate the proportion of the population with a certain viewpoint. For example, one might see a statement, 'Sixty-five percent of a random poll of 50 registered voters in the state said they would vote for the amendment.' This suggests that, with a certain level of confidence (often 95%), the result from the sample is close to the true proportion in the entire population. Additionally, it is often said that 'confidence intervals constructed in this way contain the true value for the population proportion.' For instance, 'Ninety percent of all confidence intervals constructed contain the true value for the population percentage of students who are registered voters.' To evaluate the initial claim about homeowners in Ypsilanti, one would need similar polling data specifically about Proposal 127.