Question 10 73 pts A quality analyst wants to construct a control chart for controlling a packaging process Exchda week, he randomly selected four packages and weighed each. The data from that activity bow Weight Day Package 1 Package 2 Package 3 Package 4 Monday 23 22 23 24 Tuesday 23 21 25 21 24 Wednesday 23 25 28 19 18 20 19 Thursday 20 Friday 18 20 a. What is the mean of all the sample means? (Select] b. Calculate upper and lower 3-sigma x-bar chart control limits that allow for natural variations [Select] C. Based on the x-bar chart, is this process in control? [Select] d. Calculate upper and lower limits for R-chart. Select] e. Is the range chart in control? (Select]