At one university, the students are given z-scores at the end of the each semest
ID: 3221130 • Letter: A
Question
At one university, the students are given z-scores at the end of the each semester, rather than the traditional GP The mean given all students' cumulative GPAs, on and standard deviation of which the z-scores are based, are 2.7 and 0. 5, respectively. (A) Translate each of the following z-scores to corresponding GPA scores: z = 2.0, z = 1.0, z = 0.5, z = -2.5 (B) Students with z-scores below -1.6 are put on probation. What is the corresponding probationary GPA? (C) The president of the university wishes to graduate top 16% of the students which cum laude houners. Where approximately should the limits be set in terms of z-score? In terms of GPAs?Explanation / Answer
ANSWER :-
since z=(y-u)/
y = z*+u
here u=2.7 ,=0.5
a)
y1 = 2*0.5+2.7=3.7
y2 = -1.0*0.5+2.7=2.2
y3 = 0.5*0.5+2.7=2.95
y4 = -2.5*0.5+2.7=1.45
b)
corresponding probationary GPA = 1.9
c)
z = 1.0 and 2.0
GPA = 3.2 and 3.7
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