A standard penetration test has been conducted at a depth of $15$ ft in an $8-$inch diameter exploratory boring using a USA$-$style safety hammer and a standard sampler. This test produced an uncorrected N$-$value of $12.$ The soil inside the sampler was a fine$-$to$-$medium sand with D $0\mathrm{.}6$ mm$.$ The vertical effective stress at this depth is $1100$ lb$/$ft$.$ Adjust the N$-$value as described in Chapter $3,$ then compute the relative density and classify the soil using Table $4\mathrm{.}4.$