Valuation by comparables $($S$4\mathrm{.}2)$ Look up P$/$E and P$/$B ratios for Entergy $($ticker symbol ETR$),$ using Yahoo! Finance or another Internet source. Calculate the same ratios for the following potential comparables: American Electric Power $($AEP$),$ Eversource Energy $($ES$),$ and Southern Company $($SO$).$ Set out the ratios in the same format as Table $4\mathrm{.}2.$ Are the ratios for these electric companies tightly grouped or scattered? If you didn't know Entergy's stock price, would the comparables give a good estimate?