7. A claim is made that 60.4% of college students earn their undergraduate degree in four years. A college administrator believes this claim is incorrect. He would like to test the null hypothesis...

7. A claim is made that 60.4% of college students earn their undergraduate degree in four years. A college administrator believes this claim is incorrect. He would like to test the null hypothesis that = 0.604 versus the alternative hypothesis that ≠ 0.604. Upon gathering data from a large random sample of college graduates, he obtains a test statistic of 1.8. If the significance (or alpha) level is 0.05, what would be the appropriate conclusion? A. The null hypothesis should be rejected. B. The null hypothesis should not be rejected. C. The null hypothesis is true. D. The null hypothesis is false. E. A conclusion cannot be reached without knowing the exact sample size.