An automated machine fills bottles with a mean of 16 oz. and standard deviation of 0.1 oz. Assuming that Cpk index is 1 for this process, what are the lower and upper specification limits? Multiple Choice 1. lower spec = 14.3 ounces and upper spec = 17.7 ounces 2. There is insufficient information to determine the process specification. 3. lower spec = 15.7 ounces and upper spec = 16.3 ounces 4. lower spec = 12.0 ounces and upper spec = 21.4 ounces 5. lower spec = 0.1 ounces and upper spec = 1 ounce