Using the factors in Table, establish a range chart (R chart). What is the Lower Limit (LCL) within 4 decimal points.

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Whole Food uses a mean and a range chart to monitor checkout time. The following table shows six samples of 20 observations with sample means and ranges computed: Sample Mean Range Sample Mean Range 1 3.06 0.42 4 3.13 0.46 2 5 3.06 0.46 3 6 3.09 0.45 3.15 3.11 0.50 0.41 Whole Food uses a mean and a range chart to monitor checkout time. The following table shows six samples of 20 observations with sample means and ranges computed: Sample Mean Range Sample Mean Range 1 3.06 0.42 4 3.13 0.46 2 5 3.06 0.46 3 6 3.09 0.45 3.15 3.11 0.50 0.41

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