The states of SC, NC, and GA are similar in many aspects. We selected a random sample of 25 hospitals from each state (see Data 15) to test whether the average size hospital is similar in each state. The null hypothesis should be:

SC	NC	GA
40	210	92
269	150	140
68	34	315
69	46	408
412	59	209
128	152	113
33	125	56
193	115	171
237	99	25
145	32	35
42	80	40
66	6	25
120	78	42
66	35	339
20	100	1125
154	370	25
59	60	137
56	88	49
131	72	412
244	581	25
180	224	112
106	108	331
40	122	88
25	861	214
245	221	32