4.2. Simulation Results To compare the performance of the estimators we have generated random samples from Normal. The simulated coverage probabilities and average widths for SNR values of 1, 2, 3.333 and 10 are presented in Tables 2 to 5 respectively, where lower (upper) indicate the proportion of times the estimated SNR is below (above) the lower (upper) confidence limits of the estimated SNR, respectively. From these tables it appears that as sample size increases the coverage probabilities increase while the average widths decreases. This is true as SNR values increase from 1 to 10. For large sample size, the performance of the interval estimators for both RSS and SRS do not differ greatly. However, for small sample sizes, the RSS performed better than SRS in the sense of higher coverage and shorter width for all methods