1. Plot the following statistics as a function of the standard deviation of X's error. Use values of 0, 5, 10, 15, and 20 for the standard deviation of X error. Leave the standard deviation of the error of Y at 0.0. |
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2. Repeat Exercise 1 except vary the standard deviation of the error of
Y and set the standard deviation of the error of X to 0.0. What statistic
is unaffected by the error in Y? (Ignore slight differences due to sampling
variance in the simulation.) |
3. Why does increasing the error in Y affect the standard error of the
estimate? |