Question: Refer to Exercise 13.24. a. Are the data observational or experimental? b. If the data are observational, describe a method of answering the question with

Refer to Exercise 13.24.

a. Are the data observational or experimental?

b. If the data are observational, describe a method of answering the question with experimental data?

c. If the data are observational, produce another explanation for the statistical outcome.


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