11. The sample size for the little owl is small and the variable results for this species can probably be attributed to this. 12. The sample size was too small to rule out any differences in survival between patients of different prognostic groups. 13. This occurred because we overestimated the effectiveness of disulfiram when we calculated the sample size prior to initiating the study. 14. Twenty percent of five thousand will only give you a sample size of a thousand. 15. The distribution remains normal but the standard deviation decreases as the square root of n, the sample size. 16. Sample sizes cannot be decided independently of acceptable error since sampling cannot guarantee that it will provide the true population value. 17. In choosing a sample size, therefore, not only do con- siderations of accuracy enter, but also considerations of conventionally accepted limits. 18. It is a technique which can also help keep sample size down in the case of a large survey. 19. In this case, the researcher has the choice of restricting the samples to one age-group, or increasing the sample size to include wider age ranges. |