Essay
The SAT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are
normally distributed. In a recent year, the mean test score was 1475 and the standard deviation was 308. The
test scores of four students selected at random are 1930, 1340, 2150, and 1450.
a)Find the z-scores that correspond to each value
b)Determine whether any of the values are unusual.
Correct Answer:
Verified
a)x = 1930 → 
1.48
x = 1340 → ...View Answer
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Correct Answer:
Verified
1.48x = 1340 → ...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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