A Subassembly Is Inspected and the Number of Defects Recorded

Multiple Choice

A subassembly is inspected and the number of defects recorded. A new group of assemblers began work Monday morning. The number of defects per subassembly for the first 10 they produced was: 3,2,0,5,4,6,0,7,7,and 6. What are the upper and lower limits for the c-bar chart?

A) 15 and 0
B) 10 and 0
C) 1.12 and 0
D) 6 and −2