Mathematics, 21.12.2019 03:31 scottbrandon653
The deterioriation of many municipal pipeline networks across the country is a growing concern. one technology proposed for pipeline rehabilitation uses a flexible liner threaded through existing pipe. a study reports the following data on tensile strength (psi) of liner specimen both when a certain fusion process was used and when the process was not used.
strength with fusion 3027 3356 3359 3297 3125 2910 2889 2902
strength without fusion 2748 2700 2655 2822 2511 3149 3257 3213 3220 2753
the authors of the study state that the fusion process increased the average tensile strength.
*perform a hypothesis test (α=0.05) to see if the data supports this claim?
Answers: 2
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