A direct retailer that sells clothing on the Internet has two distribution centers and wants to determine if there is a difference between the proportion of customer order shipments that contain errors (wrong color,wrong size,etc.).It takes a sample of orders from each distribution center and obtain the following results: 
Based on these data it can proceed with assuming the normal distribution for each of the proportion sampling distributions.
Definitions:
Stare Decisis
A legal principle that obligates courts to follow historical cases when making a ruling on a similar case.
Administrative Law
A branch of law dealing with the rules and regulations that government agencies must follow, including the creation and enforcement of those rules.
Public Law
A body of law that governs the relationship between individuals and the government, including constitutional, administrative, and criminal laws.
Regulatory Functions
Activities carried out by government institutions to control and supervise certain industries or practices for public welfare.
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