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It is thought that 12% of all students taking a particular course received a grade of A. In a sample of 155 students, it is
- It is thought that 12% of all students taking a particular course received a grade of A. In a sample of 155 students, it is found that 21 earned an A. What is the test statistic for testing that the true proportion is 12%?
A.0.53
B.0.01
C.0.57
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Elementary Algebra Graphs & Authentic Applications (Subscription)
Authors: Jay Lehmann
3rd Edition
0134781252, 9780134781259
