A study was made to determine which taxi company gave quicker service.Companies A and B were each called at 50 randomly selected times.The response times were recorded.The results are as follows. 
At the 0.02 level of significance,test the claim that the two companies have different mean response times.
Definitions:
National Council Licensure
The examination and certification process required for nurses to obtain a license to practice in the United States, conducted by the National Council of State Boards of Nursing.
Registered Nurse
A nurse who has met the requirements set by a country or state for licensure and is authorized to practice nursing.
Erroneous Order
A mistaken or incorrect order, often relating to prescription or treatment plans in a healthcare setting.
Primary Health Care Provider
A healthcare professional, often a doctor or nurse practitioner, who provides both the first contact for a person with an undiagnosed health concern as well as continuing care for varied medical conditions.
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