Calculating Z-scores for Confidence Intervals
What z-score goes with a 95% confidence interval?
+/- 1.96
What z-score goes with a 96% confidence interval?
+/- 2.05
What z-score goes with a 97% confidence interval?
+/- 2.17
What z-score goes with a 98% confidence interval?
+/- 2.33
What z-score goes with a 99% confidence interval?
+/- 2.575
What z-score goes with a 80% confidence interval?
+/- 1.28
What z-score goes with a 81% confidence interval?
+/- 1.31
What z-score goes with a 82% confidence interval?
+/- 1.34
What z-score goes with a 83% confidence interval?
+/- 1.37
What z-score goes with a 84% confidence interval?
+/- 1.41
What z-score goes with a 85% confidence interval?
+/- 1.44
What z-score goes with a 86% confidence interval?
+/- 1.48
What z-score goes with a 87% confidence interval?
+/- 1.51
What z-score goes with a 88% confidence interval?
+/- 1.55
What z-score goes with a 89% confidence interval?
+/- 1.60
What z-score goes with a 90% confidence interval?
+/- 1.645
What z-score goes with a 91% confidence interval?
+/- 1.70
What z-score goes with a 92% confidence interval?
+/- 1.75
What z-score goes with a 93% confidence interval?
+/- 1.81
What z-score goes with a 94% confidence interval?
+/- 1.88