Table 10 Minimum required sample size as a function of standard error (SE) with 95% confidence interval.
Standard error (SE) | Percentage points (1.96SE) | Minimum n |
|---|---|---|
(0.05) | ±0.0980 | 178 |
(0.04) | ±0.0784 | 278 |
(0.03) | ±0.0588 | 494 |
(0.02) | ±0.0392 | 1112 |
(0.01) | ±0.0196 | 4445 |