Suppose 8 adult patients with the same diagnosis were randomly selected. Researchers want to check whether the injected medication will affect the change in body temperature. The patient's body temperature was measured before and after the injected medication and resulting data are given in the accompanying table. 
Construct and interpret a 95% confidence interval estimate for the difference in mean temperature before and after the injected medication.
Definitions:
Poverty Line
A threshold set by governments or organizations to define the minimum income necessary to cover basic living costs, below which individuals are considered to be living in poverty.
Income Quintile
A statistical measure that divides a population into five equal groups according to their income levels, used to analyze income distribution.
Highest Quintile
Refers to the top 20% of the population sorted by income or wealth, indicating those with the highest levels of each.
Welfare Reform Act
Legislation aimed at changing the welfare system by encouraging work, limiting the duration of benefits, and supporting families.
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