A Random Sample of 15 Telephone Calls in an Office

question 100

Short Answer

A random sample of 15 telephone calls in an office showed the duration of each call and whether it was a local or a long distance call.
a.What is the point estimate for the average duration of all calls?
b.What is the point estimate for the standard deviation of the population?
c.What is the point estimate for the proportion of all calls that were long distance?

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Definitions:

Prescription

An authorization written by a medical professional that allows a patient to obtain a specific medication or treatment.

Enema

A procedure involving the introduction of liquid into the rectum and colon to induce bowel movement or for diagnostic purposes.

Narcotic

A class of drugs that affect mood or behavior and are often used for pain relief, but can also lead to dependence or abuse.

Ointment

A semi-solid preparation applied topically to the skin or mucous membranes for therapeutic reasons.