INFERENCE FOR SINGLE POPULATION MEAN (HYPOTHESIS TESTING)By a new technique in the manufacturing process, it is claimed that the mean breakingstrength of a cable is not equal to 1850 lb. To test this claim, a sample of 50 cables is testedand it is found that the mean of breaking strength is 1800 pounds (lb) and standard deviationis 100 lb. Can we support the claim at a =0.01? (Breaking strength is the ability of a materialto withstand a pulling or tensile force).13.Source: Schaum's Outline of Statistics, 4th Edition, Murray, R. Spiegel & Larry, J. Stephens.

Given,sample size(n)=50sample mean(x¯)=1800standard deviation(s)=100α=0.01

Answered: INFERENCE FOR SINGLE POPULATION MEAN…

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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Hypothesis Tests About A Population Mean 11. The breaking strengths of ropes produced by a manufacturer have mean 1800 N and standard deviation of 100 N. By a new technique in the manufacturing process it is claim that the breaking strength can be increased. To test this claim, a sample of 50 ropes is tested and it is found that the mean breaking strength is 1850 N. Can we support the claim at 0.01 level of significance ?
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