AnderSet Laboratories produces rough lenses that will ultimately be ground into precision lenses for use in laboratory equipment. The company has developed the following thickness measures, based on $15$ samples of four lenses that were taken when the process was under control:

Click the icon to view the sample data.

Click the icon to view the values of the $A_2,D_3,$ and $D_4$ constants.

a$.\frac{?}{\text{b}\text{a}\text{r}}(\stackrel{}{x})$ is $4\mathrm{.}134.($Enter your response rounded to three decimal places.$)$

More Info

$\frac{?}{\text{b}\text{a}\text{r}}(R)$ is $.($Enter your response rounded to three decimal places.$)$

More Info

$\backslash$table$[[\backslash$table$[[$Sample$],[$Size $N$

Please find the range

The upper control limit $($UCL$-x$

The lower control limit $($LCL$-$x$)$

The upper control limit$($UCLr$)$

The lower control limit$($LCLr$)$