For a Manufacturing Process $\overline { \overline X }$ = 10 Inches

Multiple Choice

For a manufacturing process, $\overline { \overline X }$
= 10 inches, $\overline { \mathrm { R } }$
= ) 4 inches,and the subgroup sample size is 6 units.Calculate the natural tolerance limits for this process.

A) [9.526,10.474]
B) [9.510,10.490]
C) [9.484,10.516]
D) [9.807,10.193]
E) [9.769,10.231]