A dynamic modulus test is conducted on asphalt mix. For a temperature of $70F,$ a maximum sinusoidal stress of $17\mathrm{.}5$ psi results in maximum axial strains of $37,25,$ and $19$ microinches$/$inch for frequencies of $1,4,$ and $16HZ,$ respectively. Calculate the $E^{**}$ for this mix at these frequencies. Plot the relationship between $E^{**}$ and Frequency.