Sentence examples for estimates are questionable from inspiring English sources

However, this paper argues that in respect to at least one area of the empirical literature the estimation of the health impacts of air pollution using daily time series data existing estimates are questionable and thus have limited relevance for environmental decision-making.

However, we have shown in earlier work that these estimates are questionable for African countries.

It is generally accepted that there is a lack of information with respect to the dynamics and scale of illicit drug markets, and the validity or reliability of estimates are questionable.

While official statistics indicate that cocaine use is relatively stable in Europe and may be dropping in the USA, it is generally accepted that there is a lack of information with respect to the dynamics and scale of illicit drug markets, and the validity or reliability of estimates are questionable.

For example, classes must be distinguishable from each other and of sufficient size, otherwise the stability and reliability of the estimates is questionable [42].

Outside of this study, the reliability of COPD prevalence estimates is questionable.

Whether the additional threshold layer actually increases the accuracy of the genomic breeding value estimates is questionable with a binary or an ordinal data but less so with a censored Gaussian data.

The argument which is often brought forward that such misclassification is less serious because it leads to a more conservative estimate, is questionable as also underestimations are non-valid and therefore unwanted.

But the idea is questionable.

The statistical model parameters can be estimated in many ways, one of which is to use a maximum likelihood approach, but these estimates are of questionable value in the absence of a measure of their uncertainty.

Finally, methods for adjusting model parameters based on empirical uncertainty estimates, such as regression calibration, are questionable because each source category is an aggregate of numerous pollutants each with their own error distribution and covariances.