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Suppose that the average grade of the students of the University of Tirana for the previous academic year is 7.6. In a random selection of
Suppose that the average grade of the students of the University of Tirana for the previous academic year is 7.6. In a random selection of 100 students of the Faculty of Economics in this University, the average grade is 8 and the standard deviation is 1.2. a) For =1%, can we say that the students of the Faculty of Economics have a higher average grade than the students of the University of Tirana? (Z0.01=2.33).
grades system is from 4 to 10!!!!!
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