Are some servers given the big spenders (or large groups) while others tend to those having only a cup of coffee or a glass of wine? Is there a difference in the mean size of the bill between the three different servers? Summary statistics for mean bill size between the three servers, coded A, B, and C, are given in Table D.10. Is there a difference in mean bill size between the three servers? Be sure to check conditions of the test, and conduct the appropriate test.

Table D.10

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Server Std.Dev. Sample Size Mean 12.71 22.76 21.14 A 60 B 65 10.19 32 25.92 14.35 12.157 Overall 22.729 157