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Youre a research analyst for General Motors. Is there a difference in the average miles per gallon (mp g) of two car models
math   Statistics-And-Probability   
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Answer #1

y represent let a represent data for sedan and data for van Now nx = 15, 7 = 22.00 on = 4-77 nyll, = 20:27, oy = 3.64 We test

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