A newly opened motel receives 1, 9, 3, 9, 4, 7, 7, 8, 6 complaints per day respectively in the first nine days of their operations. They need to draw an appropriate control chart to evaluate the quality of their service . Considering a 99.73% confidence level, what are the upper and lower limits in such control chart to evaluate their performance? Question 52 options: UCL=13.35 ; LCL=1.35 UCL=0 ; LCL=-1.35 UCL=13.35 ; LCL=-1.35 UCL=13.35 ; LCL= 0 UCL=0 ; LCL=-13.35