Consider the accompanying data on breaking load (kg/25 mm width) for various fabrics in...

Consider the accompanying data on breaking load (kg/25 mm width) for various fabrics in both an unabraded condition and an abraded condition (“The Effect of Wet Abrasive Wear on the Tensile Properties of Cotton and Polyester-Cotton Fabrics,” J. Testing and Evaluation, 1993: 84–93). Use the paired t test, as did the authors of the cited article, to test H₀ : μ_D = 0 versus H_a : μ_D > 0 at significance level .01.