Data from a simple random sample of 2000 adults in California were used to compute a 90% confidence interval for the proportion of adults that favor the death penalty. Data from a simple random sample of 2000 adults in Idaho were also used to compute a 90% confidence interval for the proportion of adults that favor the death penalty. The population of California is 39 million and the population of Idaho is 2 million. Suppose that the calculated sample proportions are equal for the two samples. The margin of error of the confidence interval for Idaho is