The results of the 1999 National Health Interview Survey released in 2003 [A-7] showed that among U.S. adults ages 60 and older, 19 percent had been told by a doctor or other health care provider that they had some form of cancer.

A) If we use this as the percentage for all adults 65 years old and older living in the United States, what is the probability that among 65 adults chosen at random more than 25 percent will have been told by their doctor or some other health care provider that they have cancer?

B) The reported cancer rate for women subjects ages 65 and older is 17 percent. Using this estimate as the true percentage of all females ages 65 and over who have been told by a health care provider that they have cancer, find the probability that if 220 women are selected at random from the population, more than 20 percent will have been told they have cancer.