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At the University of Jazzex, a Lecturer is concerned about grade inflation. She suggests that the...

  1. At the University of Jazzex, a Lecturer is concerned about grade inflation. She suggests that the University should come up with standardised grades (or z-scores) on top of the regular grades. Jasmine was in four different classes. Each of the class had 20 students in it. Jasmine’s grades, the mean of the class, and the standard deviation are known. Based on the theoretical information you have learnt so far, calculate the standardised grade for each class. Interpret the standardised grades and explain where Jasmine had the best performance. (5 points)

Jasmine’s grade

Mean

Standard deviation

3.80

3.75

.15

3.60

3.25

.60

3.10

3.20

.38

2.50

2.90

.75

0 0
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