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.
fill in the blank: the margin of error of the confidence interval for idaho is
a) smaller than that of california.
b) the same as for california.
c) greater than that of california.
d) smaller or larger than for california, depending on chance variation.