Question: Challenge 1: Draw samples (the red dots are samples you draw) by clicking Run Next Batch throughout the whole shift (from 7am to 10pm), copy

Challenge 1: Draw samples (the red dots are samples you draw) by clicking Run Next Batch throughout the whole shift (from 7am to 10pm), copy the data into an Excel spreadsheet and calculate the control limits for X-bar and R charts. Repeat this process for several times. a). Are you getting the same control limits each time? Why? Summarize the CLs in the Word document. b). Should you use standard deviation or range for the calculation of CLs for X-bar chart? If use standard deviation for X-bar charts, how to get it? c). Why do we need to use both X-bar and R charts

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