4. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager wishesto select from the top 75% of applicants who take the test, find the cutoff score. Assume the variable isnormally distributed.5. The time it takes a randomly selected job applicant to perform a certain task has a distribution that canbe approximated by a normal distribution with a mean value of 120 seconds and a standard deviationof 20 seconds. The fastest 10% are to be given training. What task times qualify individuals for suchtraining?

According to Bartleby expert guidelines we can strictly answer only first question. Rest can be…

Answered: 4. The scores on a test have a mean of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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4. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager wishes to select from the top 75% of applicants who take the test, find the cutoff score. Assume the variable is normally distributed.