Answered: The tensile adhesion of each of 20…

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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The tensile adhesion of each of 20 randomly selected specimens of a metal tested. The resulting measurements (in megapascals). Use them to calculate a 90% condence interval for the true mean tensile adhesion strength of the metal.

tensile adhesion of 20 specimens:

11.4 11.9 13.6 8.8 19.5

15.8 16.7 17.6 14.1 11.4

11.9 12.7 7.9 18.5 15.4

15.4 7.5 14.9 10.1 19.8

Using Excel, Total sum of 20 specimen measurements= 274.9

Average = 13.745

Use the given amounts to find the 90% confidence interval of the true mean.

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