The Personnel Department of a Large Corporation Wants to Estimate

question 45

Short Answer

The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of six employees reveals the following family dental expenses: $180, $260, $60, $40, $100, and $80. It is known that dental expenses follow a normal distribution. Construct a 90% confidence interval for the average family dental expenses for all employees of this corporation.

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Definitions:

Palpation

The method of feeling with the hands or fingers to assess the size, consistency, texture, location, and tenderness of an organ or part of the body.

Inspection

Visual examination.

Auscultation

The act of listening to the internal sounds of the body, typically using a stethoscope, as part of a medical examination.

Herpes Simplex

A viral infection characterized by the appearance of painful blisters in the affected areas, commonly the mouth or genitals.