Use the information contained in the attached chart to determine your answer.Twenty samples of size 8 were taken from a stable process. From past studies of the process, you know that the overall mean is 42.5 and that the average of the samples range is 2.0. What is the upper control limit for the x-bar chart? 
Definitions:
Major Life Stressor
Significant events or changes in one’s life that disrupt stability or routine, often requiring substantial adjustment and associated with increased stress.
Acute Stress
A form of stress that is short-term and stems from the demands and pressures of the recent past and anticipated demands and pressures of the near future.
Decreased Immune Response
A reduction in the effectiveness of the body's immune system to fight off infections and diseases.
Chronic Diseases
Long-lasting medical conditions that are often progressive and require ongoing management and treatment.
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