Unformatted text preview: 2.1603686522 p-value = 0.0315 We reject the null hypothesis since the p-value is smaller than the significance level (0.10). We have sufficient evidence to conclude that the modification reduces the number of traffic accidents. Ho: μ1 - μ2 ≤ 0 Ha: μ1 - μ2 > 0...
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- Spring '10
- Statistics, Null hypothesis, Statistical hypothesis testing, Ronald Fisher