A worker earns $16 per hour at a plant. If the wage is assumed to be normally distributed with mean $7.75 and standard deviation of $5 per hour. Find the percentage or probability of the plant workers that earn more than this worker's rate per hour. b) The sign on the lift in a building states " Maximum capacity 1120kg or 16 persons". You want to find the probability that 16 people would weight more than 1120kg. If the weight of the people who use the lift are normally distributed, with a mean of 70kg and a standard deviation of 10kg, what is the probability that you seek?