The tables given below give the mean flow times $t$ in a suspended level viscometer recorded

for solutions of two of the five monodisperse samples of polystyrene at various concentrations

in cyclohexane at $34C.$ Under these conditions, the mean flow time to for cyclohexane is

$151\mathrm{.}8$ s$.$ Determine the intrinsic viscosities $$ samples B and E$.$