The design tolerance thickness for an automotive part is 55mm to 65mm. If the process mean thickness is 61mm with a standard deviation of 2.3mm, then what percentage of the sheets will be acceptable?(What percentage will fall within the design tolerence?) Assume that the distribution of these parts is normally distributed??
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability from the Z scores.
