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An independent-samples t test was conducted to compare gas expenses of diesel truck owners to owners of regular gas trucks. Imagine the mean gas consumption

An independent-samplesttest was conducted to compare gas expenses of diesel truck owners to owners of regular gas trucks. Imagine the mean gas consumption in one week amounted to $68 for diesel trucks and $84 for regular gas trucks. Imagine also that values were calculated forsdifferenceof 6.9, 21.74 for pooled variance, and 82 for degrees of freedom total. What is the value of the test statistic?

-16

-0.20

-2.32

-0.74

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