A researcher measures the relationship between sleep medication use (in times per week) and time spent working
Question:
Sleep Medication Use ______________________ Time Spent Working
8 ........................................................... 18
3 ........................................................... 40
6 ........................................................... 20
2 ........................................................... 32
(a) Compute the Pearson correlation coefficient.
(b) Multiply each measurement of drug use by 3 and recalculate the correlation coefficient.
(c) Divide each measurement in half for time spent working and recalculate the correlation coefficient.
(d) True or false: Multiplying or dividing a positive constant by one set of scores (X or Y) does not change the correlation coefficient. Note: Use your answers in (a) to (c) to answer true or false.
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Related Book For
Statistics For The Behavioral Sciences
ISBN: 9781506386256
3rd Edition
Authors: Gregory J. Privitera
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