Caselet 1Coefficient of Linear thermal expansion (CTE) is a materialproperty that describes the unit expansion of a material perone degree of temperature increase. The higher it is, thehigher does the size of the material becomes under heat. Asteel manufacturer claims that their newly-developed alloyhas lesser thermal unit expansion than the common steelused in the market. 20 samples of the newly-developedalloy were tested, while 17 samples of common steel weretested under the same conditions. The average coefficientof the newly-developed alloy is 11.13 with a standarddeviation of 3.2, while the average coefficient of commonsteel is 12.98 with a standard deviation of 4.1. Using a 0.05level of significance, is the CTE of the newly-developedalloy significantly different from the common steel? Assumeequal variances.

Answered: Image /qna-images/answer/9152a070-2303-4b01-bb56-648d5acd62eb.jpg

Answered: Coefficient of Linear thermal expansion…

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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