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A researcher measures the relationship between the number of interruptions during a class and time spent...

  • 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"
    9 16
    4 38
    6 20
    2 31

  • Compute the Pearson correlation coefficient. (Round your answer to three decimal places.)

  • Part (b)

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

  • Part (c)

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

Math   Statistics-And-Probability   
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