CPK值超1.33情况下 控制图有异常点 是怎么回事？？

本帖最后由 shilingrong 于 2011-4-13 09:22 编辑

如题目--CPK值超1.33情况下 控制图有异常点 是怎么回事？？
没想明白啊---公差为85.3±0.2
CPK 1.95 CP 2.99 但控制图有超差
求解~~~~~~~~~~~
数据如下：
85.217
85.225
85.237
85.207
85.225
85.255
85.229
85.225
85.211
85.240
85.257
85.244
85.193
85.218
85.175
85.233
85.230
85.231
85.211
85.224
85.221
85.250
85.219
85.253
85.234
85.236
85.223
85.224
85.238
85.226
85.231
85.240
85.235
85.226
85.215
85.215
85.187
85.191
85.190
85.233
85.226
85.218
85.227
85.241
85.241
85.219
85.231
85.229
85.215
85.228
85.210
85.236
85.227
85.204
85.267
85.265
85.261
85.219
85.231
85.229
85.215
85.228
85.224
85.221
85.250
85.219
85.269
85.224
85.263
85.264
85.254
85.245
85.239
85.248
85.225
85.233
85.241
85.236
85.254
85.269
85.231
85.226
85.254
85.229
85.255
85.229
85.225
85.211
85.223
85.336
85.214
85.233
85.215
85.225
85.254
85.230
85.221
85.231
85.221
85.218
85.233
85.204
85.201
85.230
85.228
85.216
85.228
85.265
85.215
85.218
85.209
85.200
85.218
85.223
85.198
85.189
85.189
85.195
85.208
85.246
85.315
85.340
85.315
85.218
85.229