A Catalogue Company That Receives the Majority of Its Orders

question 47

Multiple Choice

A catalogue company that receives the majority of its orders by telephone conducted a study to determine how long customers were willing to wait on hold before ordering a product.The length of time was found to be a random variable best approximated by an exponential distribution with a mean equal to 2.8 minutes.
-What proportion of callers is put on hold longer than 2.8 minutes?

• A) 0.60810
• B) 0.50
• C) 0.367879
• D) 0.632121

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Definitions:

Billing Errors

Mistakes or inaccuracies in the charges for services or products, often leading to disputes in medical or other invoices.

Billing Inquiries

Questions or concerns from patients or healthcare service users related to charges for medical services rendered.

Patient's Chart

A comprehensive record of a patient’s medical history, treatments, and care provided over time.

Current Charges

The present fees or financial obligations incurred for services or goods.