In the 1920's about 97% of US 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 354 institutions: 132 private and 222 public.
Among the private institutions, 100 required a physical education
course, while among the public institutions, 61 required a
course.
a) what are the statistics (+/- 0.0001)?
X1=?, n1=?, p1=?
X2=?, n2=?, p2=?
b) use a 95% confidence interval to compare the...