ILC I Chart$5$

A woodworker is concerned about the quality of the finished appearance of her work. In sampling units of a split$-$willow hand$-$woven basket, she has found the following number of finish defects in ten units sampled: $4,0,3,1,2,0,7,2,0,2.$ What are the LCL and UCL using $+-3$ sigma control?

$\backslash$table$[[0\mathrm{.}042$ and $3\mathrm{.}813],[0\mathrm{.}000$ and $6\mathrm{.}447],[-0\mathrm{.}096$ and $5\mathrm{.}822],[0\mathrm{.}009$ and $4\mathrm{.}673]]$