Table 4 Estimated and extrapolated 1-year student attendance impacts (mean and 95% confidence interval) of the US EPA School Bus Rebate Program funding among students in the EPA lottery winner districts only and among all US students if all pre-2000 model year buses were replaced
From: Randomized design evidence of the attendance benefits of the EPA School Bus Rebate Program
Scenario | Mean additional student days of attendance | 95% CI |
|---|---|---|
Overall estimated 1-year impacts among lottery winners | 351,093 | −70,678 to 772,865 |
Extrapolated 1-year impacts if all US pre-2000 model year school buses were replaced | 1,326,977 | 247,443 to 2,406,511 |
