1)
less
2)
0.27
3)
x=5.3
y^ =8.43-0.27*5.3
= 6.999
4)
x=2
y^ =8.43-0.27*2
= 7.89
The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The...
The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to 10, measures the "general anxiety of an individual, with higher GAS scores corresponding to more anxiety. (Dr. Elbod's assessment of anxiety is based on a variety of measurements, both physiological and psychological.) We're interested in making predictions about individuals' sleep behavior based on their GAS scores. The bivariate data below give the GAS score (denoted by...
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)...
Dr. Strait teaches algebra. For years, he has collected data from his students about how many hours they spend studying for his final exam (worth a total of 150 points). All of Dr. Strait's students have reported studying anywhere from 0 to 20 hours for the final exam. The correlation between study time in hours) and final exam score is r=.85, and the relationship between the variables is linear. The regression equation is as follows: Predicted exam score = 38...