leaming modules. Determine what the key terms refer to in the following study. Insurance companies are interested in the mean health costs each year of their clients, so that they can determine the costs of health insurance. Statistic Sample Parameter Data Variable Population 1. All of the clients of the insurance companies 2. The mean health costs of the clients of the insurance companies per year 3. The mean health costs of the clients of the insurance companies per year in the sample The health costs per year of the clients of the insurance companies. Examples of the data are 34, 9, and 4 82 dollars. 5. A group of the clients of the insurance companies 6. = the health costs per year of one client of the insurance companies