According to the Law School Admission Council, in the fall of 2006, 63% of law school applicants were accepted to some law school. The training program Satisfaction claims that 163 of the 240 students trained in 2006 were admitted to law school. You can safely consider these trainees to be representative of the population of law school applicants. Has LSATisfaction demonstrated a real improvement over the national average?
What is the test statistic?
A) z= -1.58
B) z = 1.63
C) z = 1.58
D) z = -1.63