Suppose National Gird would like to compare the proportion of homes heated by gas in NYC with the corresponding balance in New Jersey. National Gird selected a random sample of 60 homes in NYC and found that 34 homes use gas for heating fuel. National Gird also randomly sampled 80 homes in New Jersey and found 42 used gas for heating to construct a 90% confidence interval for the difference between the proportions of NYC homes and New Jersey homes that are heated by gas