An Internet Service Provider (ISP) Has Randomly Selected a Sample

question 43

Multiple Choice

An internet service provider (ISP) has randomly selected a sample of 223 observations concerning values of the response variable Churn and several predictor variables based on customer activity during the most recently billed month. Here Churn equals Yes if a customer churned-left the internet service provider for another ISP-and equals No otherwise. The predictor variable MinutesOn is the average daily minutes the customer spent online. EmailSent is the average daily number of emails the customer sent from the email address provided by the ISP. ServCalls is the number of times the customer called for service. Below is part of the classification tree they derived from the data collected in the study. Of the sampled customers who spent an average of at least 511 minutes online per day, how many did not churn?

• A) 14
• B) 9
• C) 7
• D) 6
• E) 5

---

Definitions:

Perpetual Inventory System

An accounting method that records purchases and sales of inventory immediately through the use of computerized point-of-sale systems and enterprise asset management software.

Delivery Expense

This refers to the costs associated with transporting goods from one place to another, including shipping fees, freight, and packaging costs.

Contra Revenue Accounts

Accounts that are used to record reductions in revenue, such as sales returns, allowances, and discounts.

Sales Discounts

Reductions from the listed or invoice price of goods or services, provided by the seller as an incentive for early payment by the buyer.