Answered: Engineers want to design seats in…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 26PFA

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Engineers want to design seats in commercial aircraft so that they are wide enough to fit 95% of all males accommodating 100% of males would require very wide seats that would be much too expensive men have hip breadths that are normally distributed with a mean of 14.2 inches and a standard deviation of 0.9 inches find P 95 that is find the hip breadth For men that separates the smallest 95% from the largest 5%.

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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