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.