1)A researcher measures the relationship between the number of interruptions during a class and time spent "on task" (in minutes). Answer the following questions based on the results provided.

Number of

Interruptions Time Spent "On Task"

11 16

6 37

8 18

5 32

a)Compute the Pearsoncorrelation coefficient. (Round your answer to three decimal places.)

________

b)Multiply each measurement of interruptions times 3 and recalculate the correlation coefficient. (Round your answer to three decimal places.)

________

c)Divide each measurement in half for time spent "on task" and recalculate the correlation coefficient. (Round your answer to three decimal places.)

________