Answered: 40) Suppose that the sitting…

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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40) Suppose that the sitting back-to-knee length for a group of adults has a normal distribution with a mean of μ=23.7 in. and a standard deviation of σ=1.2 in. These data are often used in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats. Instead of using 0.05 for identifying significant values, use the criteria that a value x is significantly high if P(x or greater)≤0.01and a value is significantly low if P(x or less)≤0.01.

Find the back-to-knee lengths separating significant values from those that are not significant. Using these criteria, is a back-to-knee length of 25.9 in. significantly high?

Find the back-to-knee lengths separating significant values from those that are not significant.

Back-to-knee lengths greater than____ in. and less than_____in. are not significant, and values outside that range are considered significant.

(Round to one decimal place as needed.)

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