1. As a process owner, you have been tasked with developing a x-bar chart, You've collected the following data. Calculate the upper and lower control limits using a 3-sigma performance level and build your X- bar chart. Begin by calculating the overall standard deviation and standard deviation of the distribution of sample means. Sample Number Values for Each Item in the Sample 59 45 51 2 45 57 41 3 42 43 45 4 57 57 50 $ 53 55 40 52 48 50 7 50 51 45 49 47 56 9 56 50 41 10 60 40 50