A survey of households in a small town showed that in 500 of 1,200 sampled households, at least one member attended a town meeting during the year. Using the 95% level of confidence, what is the confidence interval for the proportion of households represented at a town meeting? Find the sample proportion. Calculate the standard error. Find the corresponding z-value to use for a proportion with a 95% confidence level. Construct the 95% confidence interval for the proportion of households represented in a town meeting.