Use this information about 10 shipments of lightbulbs: 
If 400 bulbs are selected at random from each of 10 shipments and the number of defectives in each shipment is given above,find the appropriate center line.
Definitions:
Topical Anesthetic
A medication applied to a specific area of the body to numb sensation, often used before minor procedures or to relieve pain from conditions affecting the skin.
Ethical Principle
A fundamental guideline or rule that drives moral behavior and decision-making, often based on notions of right and wrong.
New Morbidity
Refers to contemporary health issues affecting children and adolescents, notably those related to behavior, social environment, and educational constraints.
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