Polar bears are obligate carnivores, and seals make up a large proportion of their diet. to determine the primary composition of seals in the polar bear diet, a group of researchers assessed a simple random sample of 450 seals killed by polar bears from 1985 to 2011 and determined the species of the seals that were killed. the researchers found that 9 % of the seals killed were bearded seals. the researchers want to construct a 95 % confidence interval for , the proportion of all seals killed by polar bears that were bearded seals. have the requirements for a large-sample -confidence interval been met?