Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world. Results from the...
Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world. Results from the last five samples are shown in the table. Is the process under control
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xxxxxx xxx x observations of 74, process is xxxxx control
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xx Thermostats xxx xxxxxxxxx xx rigorous xxxxxxx xxxxxx xxxx xxx xxxxxxx xx xxx xxxxxxxxxxxx xxxxxxxxxxx around the world. xxxxxxx xxxx xxx xxxx xxxx xxxxxxx xxx shown xx the table. xxxx and x xxxxx xxx xx xxxxx xxxxxx Based on the xxxxxxx xx the process under xxxxxxxx xxx xxxxxxx
| Observations | xx | ||||||
xxxxxx | 1 | x2 | x | x | xx | xtotal | xx xxx | xR |
x | xxxxx | x70.8 | xxxxx | xxxxx | x71 | 361.1 | xxxxx | xxx |
2 | xxxxx | xxx | xxxx | 72.7 | xxxx | x360.3 | xxxxxx | x2.1 |
3 | xx | 72.6 | xxxxx | x72.4 | xxxxx | xxxxxx | xxxxx | xxxx |
4 | xxxxx | 70.6 | xxxx | 74.2 | xxxx | x359.8 | 71.96 | xxx |
5 | 70.8 | 70.7 | 70.7 | x73.5 | 71.1 | x356.8 | xxxxx | xxxx |
| x | x | xxxxx | 359.64 | xxxx | ||||
| x | x | x | 71.93 | 2.96 |
Xbar xxxxxxx Chart:
xxxxxxx Line xxxx x X xxxxxx bar xxxxxx xxx xxxxxxxxxxx
xxxxx xxxxxxx xxxxx (UCL) x X xxxxxx
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