Table 3:
Z-test results for pedestrian crossing speeds (m/s) at signalized and unsignalized crosswalks.
-
Signalized
Unsignalized
Known Variance
0.068
0.121
Observations
1782
2519
z
-1.499
-
P(Z<=z) two-tail
0.134
-
z Critical two-tail
1.960
-