=+28. Polyester fiber ropes are increasingly being used as components of mooring lines for offshore structures in deep water. The authors of the paper “Quantifying the Residual Creep Life of Polyester Mooring Ropes” (Intl. J. of Offshore and Polar Explor., 2005:

223–228) used the accompanying data as a basis for studying how time to failure (hr) depended on load

(% of breaking load):

x: 77.7 77.8 77.9 77.8 85.5 85.5 y: 5.067 552.056 127.809 7.611 .124 .077 x: 89.2 89.3 73.1 85.5 89.2 85.5 y: .008 .013 49.439 .503 .362 9.930 x: 89.2 85.5 89.2 82.3 82.0 82.3 y: .677 5.322 .289 53.079 7.625 155.299

a. Construct a scatterplot of x 5 load versus y 5 time.