Make a stem plot to check if there are no major departures from Normality. What proportions of the scores are within on standard deviation and within two standard deviations of the mean? What would these proportions be in exactly Normal distribution?© BrainMass Inc. brainmass.com June 4, 2020, 12:10 am ad1c9bdddf
The stem plot and standard deviation is examined. A complete, neat and step-by-step solution is provided in the attached file.