The manufacturer of Cardio Glide exercise equipment wants to study the relationship between the number of months since the glide was purchased and the time, in hours, the equipment was used last week.

a. Plot the information on a scatter diagram. Let hours of exercise be the dependent variable. Comment on the graph.
b. Determine the correlation coefficient. Interpret.
c. At the .01 significance level, can we conclude that there is a negative association between thevariables?

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Person Months Owned Hours Exercised Person Months Owned Hours Exercised Rupple Hall Bennett Longnecker Phillips Massa Sass Karl Malrooney eights 12 10 10