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Mathematics, 06.05.2020 02:34 ashlynmartinezoz2eys
G An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 210 engines and the mean pressure was 4.8 pounds/square inch (psi). Assume the population variance is 0.36. If the valve was designed to produce a mean pressure of 4.9 psi, is there sufficient evidence at the 0.1 level that the valve performs below the specifications
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G An engineer has designed a valve that will regulate water pressure on an automobile engine. The va...
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