A study was recently conducted at a major university to determine whether there is a difference in the proportion of business school graduates who go on to graduate school within

A study was recently conducted at a major university to determine whether there is a difference in the proportion of business school graduates who go on to graduate school within five years after graduation and the proportion of non-business school graduates who attend graduate school.A random sample of 400 business school graduates showed that 75 had gone to graduate school while in a random sample of 500 non-business graduates,137 had gone on to graduate school.Based on these sample data,and testing at the 0.10 level of significance,what is the value of the test statistic?
A)Approximately z = 1.645
B)About z = -3.04
C)Approximately z = 3.45
D)About z = 1.96


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