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Suppose that an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline to use. The four grades are below regular, regular, premium, and super premium. The test car made three trial runs on the test track using each of the four grades. Assuming any grade can be used at the 0.05 level, what is the critical value of F?

Kilometers per liter

Below Super

Trial # Regular Regular Premium Premium

1 39.31 36.69 38.99 40.04

2 39.87 40.00 40.02 39.89

3 39.87 41.01 39.99 39.93

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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