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Another student was upset for a different reason. He thought that Test 2 was too long...

Another student was upset for a different reason. He thought that Test 2 was too long and said, “At least half of the class was still testing when there were only 10 minutes left!” (Students are allowed 90 minutes to complete the test.) Using a significance level of 0.01, test the student’s claim that at least half of the students were still taking the test at the 80-minute mark. X=43.2, n=70,S=16.50963706

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