Your company has been testing two flavors of coffee using free samples, let's call them Flavor...

Your company has been testing two flavors of coffee using free samples, let's call them Flavor A and Flavor B. You are planning to only offer one flavor for sale and are interested in whether your customers prefer Flavor A or Flavor B.

You use a taste testing survey of 60 randomly selected people, and find that 36 people prefer Flavor B.

Using greta and assuming a generative model with Bernoulli data (X) and a Beta prior (θ):

X∼Bernoulli(θ)

Θ∼Beta(2,2)

determine what your updated probability is that Flavor B is preferred to Flavor A. In other words, what percentage of your posterior draws have a theta that is above 0.5?

(Enter answer as a decimal - i.e. 12% would be entered as 0.120. Round to the nearest thousandths place)

Please show me how something like this would be solved using R.

Expert Solution

milcah answered 2 hours ago

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