A chair assembly line has 4 stations: frame, painting, padding, and packaging. A job arrives on an average every minute with a standard deviation of 4 minutes. The frame station has 8 workers, and each worker takes an average of 3 minutes to complete a frame and the standard deviation of frame making time has been found to be about 18 seconds. The painting station has 9 workers, where each worker takes an average of 4 minutes to paint and dry a frame, and the standard deviation of has been found to be about 5 minutes due to the variation in drying. The padding station is automated, with two identical machines completing the padding in exactly 54 seconds each, for every chair. The packaging station is a new, automated machine, and takes 48 seconds to pack up a chair for shipping with a variance of 21 second squared due to quality control issues. [30 points) i. How much time (in minutes) does it take from the time a job arrives at the frame making station to the time it arrives at the packaging station? a) 7.57 c) 10.58 b) 9.93 d) 25.31 ii. What is the SCV of packed chairs that are exiting the assembly line? a) 3.28 b) 13.84 c) 3.40 d) 16.00