In cloth manufacturing, the strength of cotton fiber used in manufacturing cloth material is to be at least 100 psi. Experience has indicated that the standard deviation of strength is 2 psi. A random sample of nine pieces are tested, and the average strength is found to be 100.6 psi.(a) Should the fiber be judged acceptable? Use the P-value approach.(b) What is the probability of not rejecting the null hypothesis at α = 0.05 if the fiber has a true mean breaking strength of 102 psi? (c) Find a 95% one-sided lower CI on the true mean breaking strength. Q1) In cloth manufacturing, the strength of cotton fiber used in manufacturing cloth material is to be at least 100psi. Experience has indicated that the standard deviation of strength is 2 psi. A random sample of ninepieces are tested, and the average strength is found to be 100.6 psi.(a) Should the fiber be judged acceptable? Use the P-value approach.(b) What is the probability of not rejecting the null hypothesis at a = 0.05 if the fiber has a true mean breakingstrength of 102 psi?(c) Find a 95% one-sided lower CI on the true mean breaking strength.

Answered: Image /qna-images/answer/56559f3f-83cc-4b7d-9035-e990fbe9390e.jpg

Answered: xperience has indicated that the…

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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In cloth manufacturing, the strength of cotton fiber used in manufacturing cloth material is to be at least 100 psi. Experience has indicated that the standard deviation of strength is 2 psi. A random sample of nine pieces are tested, and the average strength is found to be 100.6 psi.

(a) Should the fiber be judged acceptable? Use the P-value approach.

(b) What is the probability of not rejecting the null hypothesis at α = 0.05 if the fiber has a true mean breaking strength of 102 psi? (c) Find a 95% one-sided lower CI on the true mean breaking strength.