Answer the following questions. For all questions, keep 2 decimals. A manufacturer produces canned cat food. Each box contains 25 cans of cat food. The labelled weight for each can is 150 g. The manufacturer uses the 3 sigma limits to monitor the quality in terms of weight as well as packaging defects. 15 boxes of canned cat food within a large production lot were sampled. For each box, the sample means and ranges were measured, and the number of broken cans was counted. [refer to the Excel table below) # of broken can 1 0 3 2 1 1 0 Box Mean Rangel 1 147.5 2 2 152.5 1.5 3 149 3 4 153.6 1 5 150.21 0.7 6 145.3 2.3 7 153 1.1 8 159.21 0.8 9 (156.4 2.1 10 (154.21 1.4 11 151 1.1 12 140.5 1.2 13 143.6 1 14 151.2 0.5 15 158.7 0.7 0 2 1 3 5 2 1 1 1. What is the grand mean? 2. What is the lower limit for the X_bar chart? 5. What is the upper limit for the R chart? 6. What is the upper limit for the P chart? 7. What is the lower limit for the P chart