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statistics A random sample of Engines treated with the tag fuel system treatment Is given ( sample stat dor= 4. 13 ) treated with 1340

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A random sample of Engines treated with the tag fuel system treatment Is given ( sample stat dor= 4. 13 ) treated with 1340 135 131 142/ 137 131 + ag Does this data support the claim that the secret additive has increased the horsepower to more than 135. Use a Sy level of significance A. determine H1 B. Find the test statistic

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