The time needed for checking in at a motel is to be investigated. Historically, the process has had a standard deviation equal to 0.116 The means of 39 samples of n=19 are Sample Mean Sample Mean Sample Mean Sample Mean 1 3.86 11 3.88 21 3.84 31 3.88 2 3.90 12 3.86 22 3.82 32 3.76 3.83 13 3.88 23 3.89 33 3.83 4 3.81 14 3.81 24 3.36 34 3.72 s 3.84 15 3.83 25 3.88 35 3.86 6 3.83 16 3.86 26 3.90 36 3.80 7 3.87 17 3.82 3.81 37 3.54 8 3.88 18 3.86 28 3.86 38 3.79 9 3.84 19 3.84 29 3.98 39 3.85 10 3.80 20 3.87 30 3.96 Click here for the Excel Dato File 3-1 Construct an 1-chart for this process with three-sigma limits (Do not round intermediate calculations. Round your answers to 2 decimal places.) UCL "LCL 3-2. Is the process in control? Yes O No b. Analyze the data using a median run test and an up/down run test. What can you conclude? Conclusion Test Median Up/Down