Suppose that the output of a bottle filling process is normally distributed with a natural process variability of σ = 0.10. the process center has been fixed at 10 ounces. the upper spec limit = 10.2 ounces and the lower spec limit = 9.8 ounces. the liquid costs $0.25 per ounce and the bottles cost $0.50 to fix if they are out of spec. what is the average cost per bottle (filling and fixing) of this process?