Table 5.4 the Manager of Champion Cooling Company Has Recently Implemented a Implemented

Multiple Choice

Table 5.4
The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table shows the recorded temperatures of five different samples of walk-in coolers that were produced in the previous month.

-Use the information in Table 5.4. The upper control limit for the x-bar chart with three sigma limits is:

A) 105.9.
B) 103.7.
C) 103.2.
D) 102.3.