People who were born between 1978 and 1983 are sometimes classified by demographers as belonging to Generation Y. According to a Forrester Research survey published in American Demographics (Vol. 22(1), p. 12), of 850 Generation Y Web users, 459 reported using the Internet to download music.
a. Determine the sample proportion.
b. At the 5% significance level, do the data provide sufficient evidence to conclude that a majority of Generation Y Web users use the Internet to download music?