The phrase "a bigger sample in" is correct and usable in written English.
It can be used when discussing the need for a larger sample size in research or data collection contexts.
Example: "To improve the accuracy of our results, we need to gather a bigger sample in our next study."
Alternatives: "a larger sample in" or "an expanded sample in".
In addition, a comparative study would have required a bigger sample size in order to detect differences between infection markers.
The current paper provides a sufficient proof of concept of the suggested methodologies, nevertheless results need to be checked against a bigger sample size in further research.
Furthermore, this analysis better address several of the biases in clinical research, allowing the use of a bigger sample (n = 768) in many of the estimates [ 25].
The sample size was limited to only 15 patients because it showed a good discriminative power to detect differences in filter lifespan; a bigger sample might cause the difference in β2m clearance between CVVH and CVVHD to increase.
Indeed, although power calculation showed that a sample size of 166 would be sufficient for statistical purposes, a bigger sample size is needed in order to obtain representative results.
The basic structure of the FDPS was then replicated in a bigger sample of Swiss adults (N = 538).
Admittedly, they are preliminary and require replication in a bigger sample for confirmation.
To test whether that finding holds up in a bigger sample, the authors compared exchange-rate fluctuations of 40 countries between 1928 and 1935 with the increase in import barriers over the same period, using the share of customs revenue in the value of imports as a measure of tariffs.
Other variables as the fluid balance would be taking into account in a bigger sample size.
We cannot exclude that a bigger sample size could reveal differences in some of the secondary effect variables.
