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:

Group Work

A collaborative approach to learning or completing tasks that involves shared effort by members of a group to achieve common goals.

Social Work Groups

Groups formed within the social work discipline that aim to provide support, therapy, or intervention for collective or individual issues.

Learning

Learning is the acquisition of knowledge, skills, values, or behaviors through study, experience, or teaching.

Psychiatry

The branch of medicine focused on the diagnosis, treatment, and prevention of mental, emotional, and behavioral disorders.