Question: Using the upper and lower limits identified in Part 2 , extend the c - chart to include days 3 1 through 6 0 .

Using the upper and lower limits identified in Part

2,

extend the c

-

chart to include days

31

through

60 .

Based on the three Sigma limits in this chart, does it appear that the toll free number has caused a shift in the daily number of complaints received?

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