Question
The inner diameter of a piston is normally distributed with mean of 10 cm and standard deviation 0.03cm
a)below what value of inner diameter will fall fifteen percent of the piston rings?
a)below what value of inner diameter will fall fifteen percent of the piston rings?
Answers
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.15) related to a Z score. Insert the values into the above equation.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.15) related to a Z score. Insert the values into the above equation.