A logistics company operates a network of distribution centers (DCs) in a region. The table shows the number of DCs that improved their average delivery speed (measured in average hours saved per delivery) from the previous quarter to the current quarter. It also shows the number of DCs that experienced slower delivery speeds (measured in average hours lost per delivery). For each quarter, every DC either improved or slowed, and none had unchanged performance.
| Quarter | DCs with
Faster Delivery | DCs with
Faster Delivery | DCs with
Slower Delivery | Avg. Hours
Lost |
|---|
| Q1 | 12 | 0.8 | 28 | 1.2 |
| Q2 | 20 | 0.9 | 22 | 1 |
| Q3 | 18 | 0.6 | 24 | 1.1 |
| Q4 | 21 | 0.7 | 21 | 0.8 |
Based on the information provided, for each of the following quarters, select Improved from Q1 if, at the start of that quarter, the overall average delivery time across all DCs (the sum of individual performance changes) had improved relative to Q1. Otherwise, select Did not improve from Q1.
