What does the study suggest about the bias of the estimators in ...

[altibaby]

What does the study suggest about the bias of the estimators in this situation?
 
  What will be an ideal response?

Question 2

To apply the Wilcoxon rank sum test to determine whether the location of population 1 is different from the location of population 2, the:
 
  A) samples must not be drawn randomly.
  B) samples must be drawn from matched pairs of observations.
  C) samples must be independent.
  D) sample size must be larger than 30.

[GCabra]

Answer to Question 1

The two estimatorsthe mean and the medianappear to be unbiased. The averages are all very close to 120. This result should hold because the simulation uses a symmetric (normal) population.

Answer to Question 2

C

[altibaby]

Wow, this really help

[scottmt]

Great answer, keep it coming