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All people who apply for a job with the Acme Sales Company are given a job placement exam. The distribution of exam scores is approximately normal with a mean of 72 and a standard deviation of 10. a. What proportion of job applicants have exam scores greater than 85? b. The Acme Company decides it will only offer jobs to people who score in the top 10% of the exam. What is the lowest exam score that a person would have to have in order to make this cutoff?

All people who apply for a job with the Acme Sales Company are given a job placement exam. The distribution of exam scores is approximately normal with a mean of 72 and a standard deviation of 10. a. What proportion of job applicants have exam scores greater than 85? b. The Acme Company decides it will only offer jobs to people who score in the top 10% of the exam. What is the lowest exam score that a person would have to have in order to make this cutoff?

MATLAB: An Introduction with Applications
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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I don't understand can some help, and can you please show work and formula use.

All people who apply for a job with the Acme Sales Company are given a job placement exam. The distribution of exam scores is approximately normal with a mean of 72 and a standard deviation of 10. a. What proportion of job applicants have exam scores greater than 85? b. The Acme Company decides it will only offer jobs to people who score in the top 10% of the exam. What is the lowest exam score that a person would have to have in order to make this cutoff?
Transcribed Image Text:All people who apply for a job with the Acme Sales Company are given a job placement exam. The distribution of exam scores is approximately normal with a mean of 72 and a standard deviation of 10. a. What proportion of job applicants have exam scores greater than 85? b. The Acme Company decides it will only offer jobs to people who score in the top 10% of the exam. What is the lowest exam score that a person would have to have in order to make this cutoff?
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