In a study of 43 blind individuals (with no eyesight), a grooved surface was pressed against the
Question:
Let x be an individual€™s 10-g threshold, and let y be the in-dividual€™s 50-g threshold, both in mm. The equation of the model shown in Fig. 131 is f (x) = 0.86x - 0.16.
a. Is the association positive, negative, or neither? What does that mean in this situation?
b. Find f(1.5) Which is larger, 1.5 or f(1.5)? What does your comparison mean in this situation?
c. Find f(2) Which is larger, 2 or f(2)? What does your com- parison mean in this situation?
d. Find f(3) Which is larger, 3 or f(3)? What does your com- parison mean in this situation?
e. On the scatterplot, imagine the line y = x. Or use a strand of thread, a stretched rubber band, or the edge of a clear ruler to form the line. Do most of the data points lie below, on, or above the line? What does that mean in this situation?
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