Over a 10-day period, an outdoor light post manufacturer has counted the number of units not meeting design specifications. The findings are shown below.

-Calculate the lower control limits for the C chart using z = 3

Question

Over a 10-day period, an outdoor light post manufacturer has counted the number of units not meeting design specifications. The findings are shown below.
 
-Calculate the lower control limits for the C chart using z = 3

Quizplus · Accepted Answer

The lower control limit (LCL) for a C chart is calculated as LCL = C̄ - z√C̄. If the calculated LCL is negative, it is set to 0. Hence, the correct answer is 0.00.

Over a 10-Day Period, an Outdoor Light Post Manufacturer Has