A sample of 7 yields a correlation coefficient of 0.78, while a second sample of 9 on
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A sample of 7 yields a correlation coefficient of 0.78, while a second sample of 9 on the same two random variables yields a correlation coefficient of 0.61. What conclusions can be drawn about the cause-and-effect relationship between the two variables?
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Related Book For 
Probability Statistics And Reliability For Engineers And Scientists
ISBN: 9781439809518
3rd Edition
Authors: Bilal M. Ayyub, Richard H. McCuen
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