Bancroft & Co. produce wooden barrels. The barrels have been designed to have a target radius of 12 inches + 1 inch. In order to check the performance of their production process, Bancroft's process engineers periodically sampled 300 barrels. After the most current inspection, it was found that the average radius of the barrels equated to 11.1 inches. What can you conclude about the process capability of this process? The process capability index belongs to the USL Majority of the product defects will be due to barrels with radius measurements lower than the LSL. The process capability index belongs to the lower specification limit Both a & c Both b & c