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Name: yonnie is a personal manager in a large corporation. Each month she mu
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Description: yonnie is a personal manager in a large corporation. Each month she must review 16 of the employees. From past experience she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. L

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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yonnie is a personal manager in a large corporation. Each month she must review 16 of the employees. From past experience she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. Let x be the random variable representing the time it takes her to complete one review. Assume x is normally distributed. Let x be the random variable representing the mean time to complete the 16 reviews. Assume that the 16 reviews represent a random set of reviews. Find the probability that the mean of a months reviews will take yonnie from 3.5 to 4.25 hours. Give the probability statement and the probability.
P(3.5<x<4.25)=

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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