The number of gallons of paint that Home Depot sells in a given
day is normally distributed with a mean of 197 gallons and a
standard deviation of 45 gallons (I realize that the distribution
is probably different for weekends compared to weekdays, but just
assume everyday has the distribution). How many gallons of paint
have to be sold in a given day in order for that day to be in the
top 5% of the highest number of gallons...