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Research in Action
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Rice Virtual Lab for Statistics Reliability and Regression Simulation
http://www.ruf.rice.edu/~lane/stat_sim/reliability_reg/index.html

  • Read the instructions, and then click "Exercises." Review the information, and click the "Begin" button to start the simulation.
  • What happens to the reliability of X as you increase the standard deviation of X error? How is this reflected in the "modified" scatterplot?
  • What happens when you repeat the exercise and vary the standard deviation of the error of Y instead?
  • What statistic is unaffected by the error in Y?
  • Why does increasing the error in Y affect the standard error of the estimate?





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