Baseball under a full moon Exercise 4.10 mentioned that the away team has won 13 consecutive games played between the Boston Brouhahas and Minnesota Meddlers during full moons. This is a statement based on retrospective observational data.

a. Many databases are huge, including those containing sports statistics. If you had access to the database, do you think you could uncover more surprising trends?

b. Would you be more convinced that the phase of the moon has predictive power if the away team were to win the next 13 games played under a full moon between Boston and Minnesota?

c. The results of which type of observational study are generally more reliable, retrospective or prospective?