A quality control manager at a manufacturing facility has taken four samples with four observations each of the diameter of a part.

Samples of Part Diameter in Inches

$1$

$2$

$3$

$4$

$5\mathrm{.}95\mathrm{.}86\mathrm{.}35\mathrm{.}7$

$5\mathrm{.}96\mathrm{.}06\mathrm{.}35\mathrm{.}7$

$5\mathrm{.}75\mathrm{.}95\mathrm{.}76\mathrm{.}3$

$6\mathrm{.}35\mathrm{.}96\mathrm{.}25\mathrm{.}9$