SOLUTION: Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a 6) standard deviation 0.070 g. A vending machine will only accept coins weighing between
5
Algebra ->
Probability-and-statistics
-> SOLUTION: Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a 6) standard deviation 0.070 g. A vending machine will only accept coins weighing between
5
Log On
Question 1127272: Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a 6) standard deviation 0.070 g. A vending machine will only accept coins weighing between
5.48 g and 5.82 g. What percentage of legal quarters will be rejected? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! What will be accepted is where
z=(5.48-5.67)/0.07 or -0.19/0.07 or z=-2.71
z=(5.82-5.67)/0.07 or +0.15/0.07 or z=+2.15
Probability of acceptance is 0.9809
probability of rejection is 1-0.9809=0.0191
