The dating web site Oollama.com requires its users to create…
Questions
The dаting web site Oоllаmа.cоm requires its users tо create profiles based on a survey in which they rate their interest (on a scale from 0 to 3 where 0 means no interest and 3 means very interested) in five categories: physical fitness, music, spirituality, education, and alcohol consumption. A new Oollama customer, Erin O’Shaughnessy, has reviewed the profiles of 100 prospective dates to indicate whether there was any interest in learning more about them. Oollama has split the 100 profiles rated “interested” or “not interested” by Erin into a training set of 60 observations and a validation set of 40 observations. Oollama then trained a logistic regression to predict Erin’s interest in other profiles that Erin has not yet viewed. The resulting logistic regression model is as follows: For 40 profiles (observations) in the validation set, this logistic regression model generates that following probability of Interested: Interpret what the value of the coefficient for Music means in the logistic regression equation. Oollama understands that its clients have a limited amount of time for dating and therefore use lift charts to evaluate their classification models. For these data, what is the lift resulting from the logistic regression model on the top 20% of profiles that Erin is most likely to be interested in? Interpret this value.
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