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Home > INT3 > Chapter 12 > Lesson 12.2.2 > Problem 12-102

  1. Every hour, Miguel’s Microchips measures the signal strength of a chip from their manufacturing process. For each of the process control charts below, say whether the process is in control, and if not, what in the manufacturing process could have led to the out-of-control state. Homework Help ✎

The process is out of control beginning at the 9th hour.
There are 12 consecutive points above the center line.