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Exercise

Zombie drugs with prop_model

If we really were interested in the underlying proportion of heads of this coin then prop_model isn't particularly useful. Since it assumes that any underlying proportion of success is equally likely prior to seeing any data it will take a lot of coin flipping to convince prop_model that the coin is fair. This model is more appropriate in a situation where we have little background knowledge about the underlying proportion of success.

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Let's say the zombie apocalypse is upon us and we have come up with a new experimental drug to cure zombieism. We have no clue how effective it's going to be, but when we gave it to 13 zombies two of them turned human again.

  • Change the data argument to prop_model to estimate the underlying proportion of success of curing a zombie.