SOLUTION: The mileage of the Honda Fit hybrid is normally distributed with a mean of 63.4 mpg and a standard deviation of 12.6 mpg. Find the probability that the mean mileage of six Honda In

Algebra ->  Probability-and-statistics -> SOLUTION: The mileage of the Honda Fit hybrid is normally distributed with a mean of 63.4 mpg and a standard deviation of 12.6 mpg. Find the probability that the mean mileage of six Honda In      Log On


   



Question 1086070: The mileage of the Honda Fit hybrid is normally distributed with a mean of 63.4 mpg and a standard deviation of 12.6 mpg. Find the probability that the mean mileage of six Honda Insights exceeds 70 mpg. Give your answer to three decimals, e.g., .987 .
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z>=(x-mean)/sigma/sqrt(n)
z>=(70-63.4)/12.6/sqrt(6)
z>=6.6*sqrt(6)/12.6
z>=1.28
This is 0.0997 or 0.100.