Doors have a height to 6 feet 8 inches or 80 inches. Given that the heights of men are normally distributed with a mean of 69.0 inches with a standard deviation of 2.8 inches, find the percent of men who can fit through the doorway without bending over or bumping their heads. [hint: use normalcdf on your calculator with these numbers: a negative value representing the left side of the area under the normal curve, a number for the right side of the area, the mean, and the standard deviation].