Mathematics, 22.07.2021 16:40, mistergutsy8622

g A control group of 14 vehicles using regular gasoline showed mean CO2 emissions of 679 pounds per 1000 miles with a standard deviation of 15 pounds. At α = 0.05, in a left-tailed test (assuming equal variances) the test statistic is: Group of answer choices

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g A control group of 14 vehicles using regular gasoline showed mean CO2 emissions of 679 pounds per...