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Create an r chart for these data using subgroups of size 4


Question: Create an s chart for the data in problem 13-38.

Problem: Weights of pieces of tile made in Arizona in April 2007 (in ounces) are as follows:

2.5, 2.66, 2.8, 2.3, 2.5, 2.33, 2.41, 2.88, 2.54, 2.11, 2.26, 2.3, 2.41, 2.44, 2.17, 2.52, 2.55, 2.38, 2.89, 2.9, 2.11, 2.12, 2.13, 2.16.

Create an R chart for these data, using subgroups of size 4. Is the process variation under control?

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