A rum producer monitors the position of its label on the bottle by samplingthreebottles from each batch. One quantity measured is the distance from the bottom of the bottle neck to the top of the label. The process mean should be=1.6inches.

Past experience indicates that the distance varies with=0.13inch.

The sample standard deviationsfor each batch's sample is plotted on anscontrol chart. What are the center line and control limits for this chart? (Round your answers to four decimal places.)

CL=

LCL=

UCL=