For the given learning$$ rate, the cumulative learning curve coefficient for $8$ units$=$

$$

$4\mathrm{.}301$

Part $4$

Total manufacturing time for$$ the:

first $8$ units

$$

$516\mathrm{.}14$ hours

$($response should be rounded to the nearest $2$nd decimal$$ place$)$

Part $5$

Manufacturing time for the last $7$ units$=$

$$

$396\mathrm{.}14$ hours