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Hi! May anyone please help me? A car company claims that their Super Sport Sedan averages 32 mpg. You randomly select 8 Super Sports from

Hi! May anyone please help me?

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A car company claims that their Super Sport Sedan averages 32 mpg. You randomly select 8 Super Sports from local car dealerships and test their gas mileage under similar conditions. You get the following MPG scores, and do a normal probability plot: 30 27 31 26 33 25 28 30 At the 1% significance level, do the Sedans actually get lower mileage than advertised

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