The data below represent time study observations for an assembly operation. Assume a $7\%$ allowance factor. What is the normal time for element $2($in minutes$)?($Round answer to two decimal places.$)$

Observations $($times in minutes$)$

Element Performance Rating $12345$

$1100\%$

$1\mathrm{.}51\mathrm{.}61\mathrm{.}41\mathrm{.}51\mathrm{.}5$

$2130\%$

$2\mathrm{.}32\mathrm{.}22\mathrm{.}72\mathrm{.}22\mathrm{.}4$

$3115\%$

$1\mathrm{.}71\mathrm{.}91\mathrm{.}91\mathrm{.}41\mathrm{.}6$

$4100\%$

$3\mathrm{.}53\mathrm{.}63\mathrm{.}63\mathrm{.}63\mathrm{.}2$

Part $2$

A$\mathrm{.}2\mathrm{.}54$

B$\mathrm{.}3\mathrm{.}30$

C$\mathrm{.}1\mathrm{.}82$

D$\mathrm{.}3\mathrm{.}07$

E$\mathrm{.}2\mathrm{.}36$