1. Yang likes to have snacks there as well, especially a famous store, called shrimp-hamburger store. However, recently, he finds that one of the best sales, "Shrimp Bo Bo", has bad taste all the time. He complains a lot. Actually, the store owner, Kang, seems to know the problem. Kang just spent lots of money and time-decorate his store, and hired two cooks. But his business is not as good as before. Since he doesn't know how to solve the problem. He asks IEs for help to solve the problem (20%) After finishing improvement, Kang is confident with his products with good quality, he thought the strategies should be work, such as one popular product, Bo-Bo Burger, the size of the product is twice large as a M-brand hamburger. In order to ensure the quality, every hamburger needs to weigh before selling it out. Kang plans to use P-control to do quality control. To finish the control chart, he samples 8 hamburgers at 11 o'clock for 10 days. The Table 1 shows the sampling data. Please refer to Table 2 and find out the proper formulas to draw P-control chart CL UCL LCL Sample number Formula 1 1 2 3 4 5 6 7 8 9 10 P + 3p(1-P) p - 3p(1-P) Table 1 NG products 1 1 2 4 3 1 5 7 1 3 Table 2 Formula 2 P p+ 3 P-3 One Batch Sampling p(1+p) n p(1+p) n 8 8 8 8 8 8 8 8 8 8 Formula 3 P p+ 3 p - 3 p(1-P) n p(1-P) n