A Study Was Recently Conducted at a Major University to Determine

question 97

Multiple Choice

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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