Refer to Table $6.1-Factors for Computing Control Chart Limits (3 sigma) for this problem. A process that is considered to be in control measures an ingredient in ounces. Below are the last 10 samples (each of size n=5) taken. The population process standard deviation is 1.64 Samples 6 1 2 3 4 5 7 8 9 10 9 11 13 11 11 11 10 14 8 9 10 8 10 11 9 10. 10 0 7 12 10 10 9 11 8 7 11 7 12 10 10 11 9 9 11 13 9 10 11 7 13 9 8 11 11 10 8 7 B 12 a) Standard deviation of the sampling means-0.733 ounces (round your response to three decimal places) b) With z 3, the control limits for the mean chart are: = UCL, ounces (round your response to three decimal places).