Let us do the computations of Example 10.3a by hand. The first thing to note is that subtracting a constant from each data value will not affect the value of the test statistic. So we subtract 220 from each data value to get the following information.

Now m = 3 and n = 5 and

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Gas Mileage . 1 0 31 6 26 40 103 3,273 23 24 15 12 22 5 78 1,454 3 32 52 30 18 36 168 6,248