fer to able S$6.$t$-$Factors for Comouting Control ChartLimits NEED BOTH UPPER AND LOWER CONTROL LIMIT $(3$ siom for this problem.

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

$\backslash$table$[[$Hour$,x,$R$,$Hour,$\stackrel{}{x},$R$,$Hour,$\stackrel{}{x},$R$,$Hour,$\stackrel{}{x},$R$],[1,3\mathrm{.}25,{0\mathrm{.}71}^{\text{'}\text{'}},7,3\mathrm{.}05,{0\mathrm{.}58}^8,13,{3\mathrm{.}21}^{12},0\mathrm{.}80,19,3\mathrm{.}31",{1\mathrm{.}56}^{\text{'}}$