SOLUTION: The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing game

Algebra ->  Probability-and-statistics -> SOLUTION: The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing game      Log On


   

Question 524875: The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing games is more than 8 hours per week?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
You need to post a standard deviation.
Cheers,
Stan H.