About Applied Regression in R

The data set in the file named destroyers.dat contains the standard Displacement (long tons), Length (ft), Beam (ft), and Draft (ft) of the different classes of destroyers that have served in the U.S. Navy. Natural physical considerations might suggest that

Displacement Length Beam Draft

Q: Form 95% confidence intervals for 1, 2, and 3. Do they contain the theoretical values in (1) ?Suggest a more appropriate (but still simple) model for Displacement by rounding the estimated exponents 1, 2, and 3 to the nearest integers in their confidence intervals. Express it in the form Displacement ...