題2(92中正資管)
The following are eight consecutive weeks' earnings (in dollars) of three door-to door vacuum cleaner salepersons employed by a given firm:
A: 231, 209, 216, 243, 207, 200, 223, 184
B: 215, 200, 219, 230, 218, 204, 213, 207
C: 229, 213, 204, 220, 226, 208, 232, 196
Use the 0.05 level significance to test the null hypothesis that on the average the three salespersons' weekly earnings are the same.
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