Using a 95% confidence interval, Mike reports that 48% to 52% of the population favors Proposition D. The difference between 48% and 52% reflects the _____.

Question

Quizplus · Accepted Answer

The range of 48% to 52% represents the margin of error or sampling error, which is the amount of variation that can be expected from the sample due to chance. It reflects the degree of uncertainty in the estimate and indicates that the true proportion of supporters in the population could be anywhere within this range with 95% probability. Census limits do not apply here since the entire population is not being surveyed. Confidence values are implied in the statement of the interval, but not what the difference signifies. Sample size could influence the precision of the estimate but is not directly related to the range of possible values.

Using a 95% Confidence Interval, Mike Reports That 48% to 52