Average Fuel Consumption The Average Fuel Consumption of a 4-Wheel Drive Truck Is

question 26

Essay

Average Fuel Consumption
The average fuel consumption of a 4-wheel drive truck is 12.9 L/100 km. The average fuel consumption for seven randomly selected trucks is 13.5, 13.0, 12.6, 12.2, 12.8, 12.9, and 13.1. Assume the fuel consumption distribution is normal. The researcher wishes to know if the sample data suggest that the average fuel consumption is different from 12.9 L/100 km.
-Please refer to the Average Fuel Consumption paragraph. Compute the approximate p-value associated with the test statistic in the previous question. Do the sample data support the null hypothesis at the = 0.05 level? Justify your conclusion.

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