Question: student recorded the mileage he obtained while commuting to school in his car. He kept track of the mileage for twelve different tanks of fuel,

student recorded the mileage he obtained while commuting to school in his car. He kept track of the mileage for twelve different tanks of fuel, involving gasoline of two different octane ratings. Below is the recorded information:87 Octane 26.4, 27.6, 29.7 28.9, 29.3, 28.890 Octane 30.5, 30.9, 29.231.7, 32.8, 29.3Test the hypothesis at 5% significance level whether there is a significance difference in the mean mileage for the two different Octane.

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