A Group of Statistics Students Decided to Conduct a Survey

question 10

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 6 hours, what is the required sample size if the error is to be less than ½ hour with a 95% level of confidence?

• A) 554
• B) 130
• C) 35
• D) 393
• E) None of the choices are correct