Answered: A production process manufactures…

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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A production process manufactures electronic components with timing signals whose duration follows a normal distribution. A random sample of

7 components was taken, and the durations of their timing signals were measured.

a. The probability is 0.10 that the sample variance is bigger than what percentage of the population variance?

b. The probability is 0.05 that the sample variance is less than what percentage of the population variance?

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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