$8\mathrm{.}4$ On the basis of the current average failure rate of each subsystem over the first year of the space station, apply the ARINC method to determine an average failure rate goal for each subsystem of Exercise $8\mathrm{.}2.$ Assuming that reliability growth will improve only the characteristic life and not the shape parameter, what is the characteristic life goal for each subsystem?

$8\mathrm{.}5$ Apply the AGREE allocation method to a personal computer system containing the following components:

$\backslash$table$[[$Component$,$Parts count,$\backslash$table$[[$Importance$],[$index$]],\backslash$table$[[$Operating time,$],[h\frac{r}{y}r$