Chapter 17, Problem 17.6P

What is the structure of a compound of molecular formula ${\text{C}}_{\text{10}}{\text{H}}_{\text{14}}{\text{O}}_{\text{2}}$ that shows a strong IR absorption at $3150-{\text{2850 cm}}^{-1}$ and gives the following $\text{1H}$ NMR absorptions: $1.4$ (triplet, 6 H), 4.0 (quartet, $\text{4 H}$ ), and $6.8$ (singlet, $\text{4 H}$) ppm?