Answered: Two types of plastic are suitable for…

Name: Two types of plastic are suitable for use by an electronics component
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Description: Two types of plastic are suitable for use by an electronics component manufacturer. The breaking strength of this plastic is important. It is known that the population standard deviation of breaking strength for the two types of plastic are equal and

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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Two types of plastic are suitable for use by an electronics component manufacturer. The breaking strength of this plastic is important. It is known that the population standard deviation of breaking strength for the two types of plastic are equal and known to be 1.0 psi. A random sample of 10 type 1 plastic produced a mean breaking strength of 162.7 psi while a random sample of 12 type 2 plastic produced a mean breaking strength of
155.4 psi. The company will not adopt plastic type 1 unless its mean breaking strength exceeds that of plastic type 2 by at least 10 psi. Based on the sample data obtained, should the company adopt plastic type 1? Perform a hypothesis test at the 5% level of significance.

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