Researcher investigates the average life expectancy of Americans by their ethnicity. He generates four random samples for each of the major ethnicity groups: White, African-American, Hispanic and Asian-American. The table below represents the summary data for the study. 
Using a multiple comparison procedure identify differences between average precipitation for considered age cities. Use 95% Tukey-Kramer confidence interval.
Definitions:
Patient Outcome
The result or consequence of medical treatment and interventions on a patient's health status, quality of life, or survival.
Primary Nurse Identifier
A unique identification code or number assigned to a nurse for the purpose of tracking and record-keeping.
Independent Nursing Judgement
The process by which nurses make clinical decisions based on their professional knowledge and experience.
Nursing Intensity
A measure of the quantity and complexity of nursing care required by a patient, used to ensure appropriate staffing and resource allocation.
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