Question

e well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to asures the "general anxiety" of an individual, with higher GAS scores corresponding to more anxiety. (Dr. Elbod's assessment of anxiety is sed on a variety of measurements, both physiological and psychological.) 're interested in making predictions about individuals' sleep behavior based on their GAS scores. The bivariate data below give the GAS sco enoted by x) and the number of hours of sleep last night (denoted by y) for each of the fifteen adults participating in a study. A scatter plot e data is shown in Figure 1. Also given are the products of the GAS scores and sleep times for each of the fifteen adults. (These products itten in the column labeled-xy," may aid in calculations.) Sleep time, y GAS score, X(in hours) xy 5.6 8.5 7.1 6.2 8.3 6.1 7.8 5.3 6.9 7.2 8.0 6.8 6.2 6.3 8.5 49.28 32.3 28.4 32.24 50.63 42.09 28.08 41.87 20.7 7.2 16 55.08 40.92 57.33 11.9 8.8 10 3.8 4.0 5.2 6.1 6.9 3.6 7.9 3.0 1.0 2.0 8.1 6.6 9.1 1.4 Send data 10 Figure I Don't Know Submit

Answer 1

Answer: -0.6913