A Group of Statistics Students Decided to Conduct a Survey

question 13

Multiple Choice

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size if the error is to be less than ½ hour with a 99% level of confidence?

• A) 196
• B) 240
• C) 15
• D) 16

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Definitions:

Cardiac Arrest

A sudden loss of heart function, breathing, and consciousness, often caused by an electrical disturbance in the heart.

Chest Compressions

A lifesaving technique that involves pressing down on a person's chest cavity to help circulate blood when the heart is not beating effectively.

Patent Airway

An airway that is open and clear, allowing for the free passage of air in and out of the lungs.

Cardiac Arrest

A sudden loss of heart function, leading to the cessation of effective blood circulation and requiring immediate medical intervention.