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Coefficient of Determination 1 Nine students were tested to determine the effect of test anxiety...

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Coefficient of Determination 1 Nine students were tested to determine the effect of test anxiety on test scores The data is shown below Test Anxiety Score x 23 Exam Score y 43 a Find the correlation coefficient 14 59 b Find the least squares line Name 14 48 0 17 20 20 15 21 77 50 52 46 51 51 c Compute the coefficient of determination How does it compare to part a A sample of automobiles traveling a certain stretch of highway is selected Each one travels at roughly a constant rate of speed although speed does vary from car to car Let x speed and y time needed to travel this segment of highway Would the sample correlation coefficient be closest to 9 3 3 or 9 Explain

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