SOLUTION: The time required to make 1100 gallons of synthetic rubber at a plant in South America in a recent year was normally distributed with a mean of 16 hours and a standard deviation of
Algebra ->
Probability-and-statistics
-> SOLUTION: The time required to make 1100 gallons of synthetic rubber at a plant in South America in a recent year was normally distributed with a mean of 16 hours and a standard deviation of
Log On
Question 314993: The time required to make 1100 gallons of synthetic rubber at a plant in South America in a recent year was normally distributed with a mean of 16 hours and a standard deviation of 3 hours. What is the probability that it will take more than 19 hours to make 1100 gallons of synthetic rubber Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! Find the z-score.
That probability value is that the process will take 19 hours or less.
To calculate for greater than 19 hours, recall that
P( <= 19)+P( > 19)=
P( > 19)=
