Refer to Table S$6\mathrm{.}1-$ Factors for Computing Control Chart Limits $(3$ sigma$)$ for this problem.

Sampling $4$ pieces of precision$-$cut wire $($to be used in computer assembly$)$ every hour for the past $24$ hours has produced the following results:

$\backslash$table$[[$Hour$,\stackrel{}{x},R,$Hour,$\stackrel{}{x},R,$Hour,$\stackrel{}{x},R,$Hour,$\stackrel{}{x},R$