Process Capability. R. Morris and E. Watson studied various aspects of process capability in the paper “Determining Process Capability in a Chemical Batch Process” (Quality Engineering, Vol. 10(2), pp. 389–396). In one part of the study, the researchers compared the variability in product of a particular piece of equipment to a known analytic capability to decide whether product consistency could be improved. The following data were obtained for 10 batches of product. 30.1 30.7 30.2 29.3 31.0 29.6 30.4 31.2 28.8 29.8 Construct a stem-and-leaf diagram for these data with a. one line per stem.b. two lines per stem.c. Which stem-and-leaf diagram do you find more useful? Why?

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