SOLUTION: To qualify for security officers' training, recruits are tested for stress tolerance. The scores are normally distributed, with a mean of 62 and a standard deviation of 8. If only

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Question 318416: To qualify for security officers' training, recruits are tested for stress tolerance. The scores are normally distributed, with a mean of 62 and a standard deviation of 8. If only the top 15% of recruits are selected, find the cutoff.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Find the z score that equates to P%28z%29=0.85.
P%28z%29=0.85
z=1.036
z=%28x-mu%29%2Fsigma=1.036
%28x-62%29%2F8=1.036
x-62=8.288
x=70.288
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Round up to x%3E=70.3.