The following table shows the arterial plasma epinephrine concentrations (nanograms per milliliter)

found in 10 laboratory animals during three types of anesthesia:

Animal Anesthesia 1 2 3 4 5 6 7 8 9 10 A .28 .50 .68 .27 .31 .99 .26 .35 .38 .34 B .20 .38 .50 .29 .38 .62 .42 .87 .37 .43 C 1.23 1.34 .55 1.06 .48 .68 1.12 1.52 .27 .35 Can we conclude from these data that the three types of anesthesia, on the average, have different effects? Let a ¼ :05.