Answered: For many years a company has been using…

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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Question

For many years a company has been using a standardised test as a guide for hiring new secretaries. The test scores are normally distributed, with mean of 800 and standard deviation of 100. There has been an unusually high number of applicants in recent months, and it has been suggested that only the applicants who score in the upper I0 per cent should be considered further. What is the minimum test score an applicant would need for further consideration?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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