Question: QUESTION 3 Mark: 3+1+3=7 The checking-in time at a hotel is to be investigated. Historically, the process has had a standard deviation of 0.03. The

QUESTION 3 Mark: 3+1+3=7 The checking-in time at

QUESTION 3 Mark: 3+1+3=7 The checking-in time at a hotel is to be investigated. Historically, the process has had a standard deviation of 0.03. The means of 30 samples of 15 observations each in minute is given in the table below: i. Construct a mean control chart for this process of checking-in with three-sigma (z=3) limits. ii. Is the process in control? iii. Analyze the data using the median run-test and the up/down run-test and provide your conclusion

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