Semans is a manufacturer that produces bracket assemblies. Demand for bracket assemblies (X) is 128nits. The following is the BOM in indented form: ITEM DESCRIPTION USAGE x Bracket assembly 1 A Wall board 3 B Hanger subassembly 2 D Hanger casting 3 E Ceramic knob 2 C Rivet head screw 4 F Metal tong 4 G Plastic cap A(3) B(2) C(4) D(3) E(2) F(4) G(2) Below is a table indicating current inventory levels Item x Inventory 30 A B C D E G 21 62 24 189 270 1,200 105 b. What are the net requirements for each item? (Leave no cells blank be certain to enter "O" wherever required.) Item X A B C D E F 0 Net Requirements Prev 1 of 6 Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table: NUMBER OF DEFECTIVE ITEMS IN THE SAMPLE n SAMPLE 1 15 3 2 15 3 3 15 1 4 15 2 5 15 6 15 3 7 15 3 8 15 2 9 15 10 15 3 CHE a. Determine the p. Sp UCL and LCL for a p-chart of 95 percent confidence (1.96 standard deviations). (Leave no cells blank- be certain to enter "O" wherever required. Round your answers to 3 decimal places.) p bar Sp UCL LCL b. What comments can you make about the process? O Process is out of statistical control. Process is in statistical control 25 6 points Shopped Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of resistors of 1,000 ohms each. Use Exhibit 10.13 To set up the machine and to create a control chart to be used throughout the run, 15 samples were taken with four resistors in each sample. The complete list of samples and their measured values are as follows: Use three-sigma control limits SAMPLE NUMBER READINGS (IN OPS) 1 1099 1087 975 989 eBook 2 1023 991 10241 981 3 988 973 997 993 Print 4 1016 1016 987 1025 5 1012 1013 977 999 References 6 999 1022 1027 983 7 1028 996 1017 1001 1829 989 1023 996 9 1004 1003 1023 997 10 1018 1008 1001 1007 11 1003 1007 986 992 12 992 988 1000 1005 13 1024 980 986 985 14 1024 975 1017 984 15 1003 1008 981 1009 a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.) Help 6 a. Calculate the mean and range for the above samples (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.) 25 points Sample Number Mean Range 1 Skipped 2 3 eflook 4 5 Pit References 7 8 9 10 11 12 13 14 15 6 b. Determine X and R. (Round your answers to 3 decimal places.) 25 pott Sipped Xbar Rber Book Reences c. Determine the UCL and LCL for a X chart (Round your answers to 3 decimal places.) UCL LCL d. Determine the UCL and LCL for Richart. (Leave no cells blank-be certain to enter "0" wherever required. Round your answers to 3 decimal places.) UCL LOL