Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. The following data is based on a random sample: x 5 7 15 25 35 y 40 35 30 20 25 a. Plot a scatter diagram of the above data. b. Estimate the sample correlation coefficient r as positive, zero, or negative. c. Interpret your results from parts a. and b.

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Let x be the average number of employees in a group health insurance plan, and let y be the
average administrative cost as a percentage of claims. The following data is based on a random
sample:
x 5 7 15 25 35
y 40 35 30 20 25
a. Plot a scatter diagram of the above data.
b. Estimate the sample correlation coefficient r as positive, zero, or negative.
c. Interpret your results from parts a. and b.

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