A New Printing Machine Is Set or Calibrated to Print

question 79

Essay

A new printing machine is set or calibrated to print 25 copies per minute. On each of four days, the printer's output is measured five times. The data will be used to construct a process control chart to monitor the printing process. The results of the printing process are in the following table. What is the value of the lower control limit factor for a range chart?

---

Definitions:

Frequencies

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves) or in an electromagnetic field (as in radio waves and light), usually measured in hertz.

Hz

Hertz, a unit of frequency in the International System of Units (SI) that measures the number of cycles per second of any periodic event.

Temporal Lobe

A region of the cerebral cortex involved in processing auditory information and is also important in understanding language, learning, and memory.

Sound Messages

Audio signals or pieces of verbal communication that are transmitted or received, carrying information.