how do i solve this? Watershed is a media services company that provides online streaming movie and television content. As a result of the competitive market of streaming service

providers, Watershed is interested in proactively identifying will unsubscribe in the next three months based on the customer's characteristics. For a test set of

customers, the file Watershed contains an indication of whether a customer unsubscribed in the past three months and the classification model's estimated

unsubscribe probability for the customer. In an effort to prevent customer churn, Watershed wishes to offer promotions to customers who may unsubscribe. It

costs Watershed $$15$ to offer a promotion to a customer. If offered a promotion, it successfully persuades a customer to remain a Watershed customer with

probability $0\mathrm{.}8,$ and the retaining the customer is worth $$55$ to Watershed.

Click on the datafile logo to reference the data.

DATA

file

Assuming customers will be offered the promotion in order of decreasing estimated unsubscribe probability; determine how many customers Watershed should

offer the promotion to maximize the profit of the intervention campaign. Compute the average profit from offering the top $n$ customers a promotion as:

Profit $=$ Number $of$ unsubscribing customers $in$ top $n$

$(P($ unsubscribing customer persuaded $to$ remain $)(55-15)$

$+P($ unsubscribing customer $is$ not persuaded $)(0-15))$

$+$ Number $of$ customers who don't intend $to$ unsubscribe $(0-15)$

The maximum profit of $

occurs when

customers are offered the promotion.