Question: Please can you help me understand this lesson help me ASAP Berkeley Inc. has decided to use an R -Chart to monitor the changes in
Please can you help me understand this lesson help me ASAP
Berkeley Inc. has decided to use an R-Chart to monitor the changes in the variability of their 68.0068.00 pound industrial belts. The production manager randomly samples 99 industrial belts and measures the weight of the sample (in pounds) at 1616 successive time periods.
Here is the table below.


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