$7\mathrm{.}1\backslash .$ Refer to the work crew productivity example in Table $7\mathrm{.}6.$

a$.$ Calculate R~I$\text{'}$ R~$2\text{'}$ Rf$2\text{'}$ Rh$2\text{'}$ Rb I$\text{'}$ and R$2.$ Explain what each coefficien': measures and

interpret your results.