Question 4 4 pts certain stare found that the mean score on the roat was an...

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Answer 1

Answer #1

Mean = 498

Standard deviation = 72

For the best 80%, the percentile score is 0.20

Z value for p = 0.20 is -0.8416

Passing score such that 80% of all applicants pass = 498 - 0.84 * 72 = 437.52

= 438 (Rounding to nearest integer)

Answer 2

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