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. 
To construct a range process control chart, what is the mean range?
Definitions:
Blind Ads
Job advertisements that do not disclose the identity of the employer, often used to gather a wide range of candidates or for confidentiality.
Limited Information
A scenario in which decision-makers have to operate without having access to all the relevant data or details, often leading to decisions based on partial insights.
Current Employee
An individual who is presently working for an employer under a contract of employment.
Large Companies
Businesses that operate on a significant scale, often characterized by a large number of employees, extensive operations, or substantial market influence.
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