In the 1920s, about 97% of U.S. colleges and universities
required a physical education course for graduation. Today, about
40% require such a course. A recent study of physical education
requirements included 352 institutions: 125 private and 227 public.
Among the private institutions, 101 required a physical education
course, while among the public institutions, 60 required a
course
(a) What are the statistics ( ±0.0001)? X1 = , n1 = , 1p^1 = X2
= , n2 = , 2p^2...