51. An analyst needs to determine the median age of the US patient population with health insurance. Which sample is representative of this population?
Answer: A
Individuals eligible for health insurance represent the US patient population's median age.
To determine the median age of the US patient population with health insurance, a sample that encompasses all individuals eligible for health insurance is necessary. This option ensures a broad representation across various age groups within the insured population.
A) Individuals eligible for health insurance
This option is correct because it includes a diverse range of ages from the entire population that qualifies for health insurance. By sampling this group, the analyst can accurately capture the median age, reflecting the overall demographics of insured individuals.
B) Medicaid patients who are younger than 30
This option is incorrect as it only represents a specific subgroup of the insured population. Focusing solely on Medicaid patients under 30 excludes older individuals, which skews the median age calculation and does not represent the entire insured patient population.
C) University students insured by parents
This option is also incorrect because it narrows the sample to a specific demographic that may not reflect the broader insured population. University students typically fall within a younger age bracket, which would distort the median age calculation by excluding older age groups.
D) Medicare patients who are 65 and older
This option is incorrect since it only includes patients who are 65 and older. While this group is insured, it does not represent the entire patient population with health insurance, particularly younger individuals, leading to a misleading median age.
Conclusion
The choice of "Individuals eligible for health insurance" is definitive because it encompasses the entire spectrum of ages within the insured population, allowing for an accurate calculation of the median age. In contrast, the other options fail to provide a comprehensive view by limiting the age range or focusing on specific subgroups, which would not yield a representative median age for the entire population.