If $\bar x$ = 23 Ounces, ? = 0

Multiple Choice

If $\bar x$ = 23 ounces, ? = 0.4 ounces, and n = 16, the ±3? control limits will be

A) 21.8 to 24.2 ounces.
B) 23 ounces.
C) 22.70 to 23.30 ounces.
D) 22.25 to 23.75 ounces.
E) 23.3 to 25.7 ounces.