From: Spatial-time analysis of cardiovascular emergency medical requests: enlightening policy and practice
Z-score (standard deviations) | P-value (probability) | Confidence level |
---|---|---|
< − 1.65 or > + 1.65 | <  0.10 | 90% |
< −1.96 or > + 1.96 | <  0.05 | 95% |
< −2.58 or > + 2.58 | <  0.01 | 99% |