2021 as date change

analysis/analysis/output/analysis_results.md

@@ -25,23 +25,23 @@
 | max   |            2232       |
 
 ## Historical Spills Response Time Summary:
-| Period         |   count |    mean |     std |   min |   25% |   50% |   75% |   max |
-|:---------------|--------:|--------:|--------:|------:|------:|------:|------:|------:|
-| 2020 and After |    2705 | 13.5331 | 200.352 |     0 |     0 |     0 |     1 |  9261 |
-| Before 2020    |    2607 | 29.7461 | 210.659 |     0 |     0 |     1 |     2 |  5681 |
+| Period         |   count |    mean |      std |   min |   25% |   50% |   75% |   max |
+|:---------------|--------:|--------:|---------:|------:|------:|------:|------:|------:|
+| 2021 and After |    2451 | 10.1816 |  96.0115 |     0 |     0 |     0 |     1 |  2501 |
+| Before 2021    |    2861 | 31.1779 | 265.348  |     0 |     0 |     1 |     2 |  9261 |
 
 ## Recent Spills Response Time Summary:
 | Period         |   count |    mean |     std |   min |   25% |   50% |   75% |   max |
 |:---------------|--------:|--------:|--------:|------:|------:|------:|------:|------:|
-| 2020 and After |    4472 | 2.92688 | 27.3021 |     0 |     0 |     1 |     1 |  1329 |
-| Before 2020    |    6206 | 4.71221 | 57.1161 |     0 |     1 |     1 |     2 |  2232 |
+| 2021 and After |    3552 | 2.92877 | 28.8645 |     0 |     0 |     1 |     1 |  1329 |
+| Before 2021    |    7126 | 4.48077 | 53.7949 |     0 |     0 |     1 |     2 |  2232 |
 
 ## T-Test Results for Historical Spills
-T-Statistic: 2.8723
-P-Value: 0.0041
+T-Statistic: 3.9419
+P-Value: 0.0001
 The difference in response time for historical spills is statistically significant.
 
 ## T-Test Results for Recent Spills
-T-Statistic: 2.1457
-P-Value: 0.0319
-The difference in response time for recent spills is statistically significant.
+T-Statistic: 1.9390
+P-Value: 0.0525
+The difference in response time for recent spills is not statistically significant.

analysis/analysis/output/response_time_summary.md

@@ -1,6 +1,6 @@
 # Response Time Summary
 
-| Period         |   count |     mean |     std |   min |   25% |   50% |   75% |   max |
-|:---------------|--------:|---------:|--------:|------:|------:|------:|------:|------:|
-| 2020 and After |    7177 |  6.92434 | 124.966 |     0 |     0 |     1 |     1 |  9261 |
-| Before 2020    |    8813 | 12.1176  | 124.706 |     0 |     0 |     1 |     2 |  5681 |
+| Period         |   count |     mean |      std |   min |   25% |   50% |   75% |   max |
+|:---------------|--------:|---------:|---------:|------:|------:|------:|------:|------:|
+| 2021 and After |    6003 |  5.89005 |  65.3336 |     0 |     0 |     1 |     1 |  2501 |
+| Before 2021    |    9987 | 12.1288  | 149.586  |     0 |     0 |     1 |     2 |  9261 |

analysis/analysis/output/t_test_results.md

@@ -1,9 +1,9 @@
 ## T-Test Results for Historical Spills
-T-Statistic: 2.8723
-P-Value: 0.0041
+T-Statistic: 3.9419
+P-Value: 0.0001
 The difference in response time for historical spills is statistically significant.
 
 ## T-Test Results for Recent Spills
-T-Statistic: 2.1457
-P-Value: 0.0319
-The difference in response time for recent spills is statistically significant.
+T-Statistic: 1.9390
+P-Value: 0.0525
+The difference in response time for recent spills is not statistically significant.