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

question 76

Short Answer

An internet service provider (ISP) has randomly selected a sample of 347 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. Fill in the missing counts and rates in the classification tree above.

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Definitions:

Neurological Condition

A disorder affecting the nervous system, which includes the brain, spinal cord, and nerves.

Defibrillator

A defibrillator is a medical device used to deliver a dose of electric current (shock) to the heart in order to correct irregular heart rhythms and potentially prevent cardiac arrest.

Irregular Heart Rhythm

An abnormality in the frequency or pattern of the heartbeat, which can include conditions such as arrhythmias.

Regular Sinus Rhythm

The normal heart rhythm, originating from the sinoatrial node, characterized by a consistent rate and rhythm.