According to the decomposition of observed variance, OCV²(R) = CV²(R) + mean[CE²(R)], what is the most efficient strategy for increasing the overall precision of a study when biological variability is significantly greater than the sampling error?
Consider Ewald Weibel’s maxim, quoted in the text, regarding the sampling effort.
Why is the standard formula for standard error, s/√(m), considered unsuitable for predicting the coefficient of error (CE) of a volume estimate using Cavalieri’s method?
Consider the relationship between two adjacent sections in a systematic sampling scheme.
Within the context of a rigorous experimental protocol, what is the main purpose of the ‘horizontal randomisation’ illustrated in Table 10.1?
Consider how the analyst’s time or fatigue might influence the results if they were not taken into account.
When applying Chatfield’s ‘two-variable rule’ to report results, what principle should be followed?
Bear in mind the distinction between a digit that remains constant (such as the ‘1’ in 181, 182 and 189) and those that change.
Which statement correctly defines the concept of ‘consistent’ estimates in the context of estimating a population mean?
Consider how an increase in the number of subjects affects the accuracy of the overall mean.
