"randomized sample" is a correct and usable phrase in written English.
It is commonly used in research and statistics to refer to a sample of participants that has been randomly selected from a larger population. Example: The study used a randomized sample of 200 individuals from the general population to investigate the effects of the new medication.
In addition, a larger randomized sample would eliminate potential sampling errors and produce a more representative analysis.
Even though the contract offer (D) is randomly assigned in the randomized sample, the customers' contract choices are not random; the choices can depend both on observed (X, D) and on unobserved variables where ɛ stands for an error.
The block randomization step is to create initial setup(s) of randomized sample assignment based on strata combining the blocking variables considered.
They would find it laughable to draw conclusions without a large randomized sample".
A stronger study would have recruited a randomized sample of educators.
For example, my cover crop experiment has replicated plots, but they are stratified according to spatial NDVI data rather than the traditional "randomized sample" fashion.
The target population was slightly over 9000 persons of which a randomized sample (N = 1000) was gathered.
As a result of the small and non-randomized sample, the representativeness of the data may be limited.
The participating hospitals were a small, non-randomized sample of all hospitals in the given region or country.
To assess comparability across treatment groups, demographics and baseline characteristics were summarized by treatment group for the pooled all-randomized sample and for each quitting pattern subsample.
We studied a non-randomized sample of 55 concrete BSFs distributed in the Artibonite Valley, near Deschapelles, Haiti, since 1999 to evaluate their sustained use and effectiveness.
