Create a scatter diagram and consider the correlation

Reference no: EM1317386

Make a scatter diagram and compute the correlation for the given data.

The following data are based on information on the information from Domestic Affairs. Let X is the average number of employees in a group health insurance plan and let y be the average administrative cost as a percentage of claims.

X	3 7	15 35	75
Y	40 35	30 25	14

(A) Make a scatter diagram and draw the line you think best fits the data
(B) Would you say the correlation in low, moderate or strong? Positive or Negative
(C) Use a calculator to verify that x = 135, x 2nd = 7133, y =2nd =4674, and xy=3040. Compute r. As x increases, does the value of r imply that y should tend to increase or decease? Explain

Reference no: EM1317386

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