A group of statistics students decided to conduct a survey at their university to estimate the average (mean)amount of time students spent studying per week. They sampled 554 students and found a mean of 22.3 hours per week. Assuming a population standard deviation of six hours,what is the 95% level of confidence?
A)[21.80,22.80]
B)[16.3,28.3]
C)[21.64,22.96]
D)[20.22,22.0]

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The Answer of A group of statistics students decided to conduct a survey at their university to estimate the average (mean)amount of time students spent studying per week. They sampled 554 students and found a mean of 22.3 hours per week. Assuming a population standard deviation of six hours,what is the 95% level of confidence?
A)[21.80,22.80]
B)[16.3,28.3]
C)[21.64,22.96]
D)[20.22,22.0]

A Group of Statistics Students Decided to Conduct a Survey