The number of wiring packages that can be assembled by a company's employees has a normal distribution, with a mean equal to 18.7 per hour and a standard deviation of 1.1 per hour. Suppose the company employs 10 assemblers of wiring packages. (a) Find the mean and standard deviation of the company's daily (8-hour day) production of wiring packages. (Round your answers to three decimal places.) mean standard deviation (b) What is the probability that the company's daily production is less than 1,470 wiring packages per day? (Round your answer to four decimal places.)