Packages from packing machine have a mass, which is normally distributed with mean 200g and standard deviation 2g. Find the probability that the package from the machine weighs
a) less than 197g b) more than 200.5g
(use standard normal variable Z and normal distribution tables)© BrainMass Inc. brainmass.com March 4, 2021, 6:24 pm ad1c9bdddf
This provides two examples of working with standard deviation and z-tests.