SECTION 2 Solutions to Problems (Answer to All the Questions) Question 1 Mark: 2+2+2=6 The checking-in time at a readymade garments organization is to be investigated. The means of 15 samples of 10 observations with the ranges for each of the samples are given in minute in the table below: i. ii. iii. Sample Mean Range Sampl Mean Range Sample Mean Range e 1 3.86 0.05 6 3.88 0.03 11 3.85 0.05 2 3.98 0.06 7 3.86 0.05 12 3.89 0.09 3 3.78 0.03 8 3.85 0.08 13 3.84 0.08 4 3.94 0.07 9 3.95 0.06 14 3.86 0.10 5 3.84 0.08 10 3.80 0.09 15 3.97 0.07 PLEASE TURN OVER Final Examination Fall21 Construct the mean control chart for this process of checking-in with three-sigma (z = 3) limits. Plot the sample means into the control chart. Is the process in control? Analyze the data using the median run-test and the up/down run-test and provide your conclusion.