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The first estimates (5) on total sample, then (4') on the restricted sample of the 257 firms investing in big data.
The minimum sample size will allow the annual description of outcomes of interest for example, the proportion of eligible patients prescribed prophylaxis for Pneumocystis jiroveci pneumonia with a confidence interval half-width of ± 4 to ± 7% in individual project areas (depending on total sample size in the area), and with a confidence interval half-width of ± 1% in national data.
aBased on total sample population of 131 isolates; PFGE, pulsed-field gel electrophoresis.
29 Random effects were used to give an average estimate across heterogeneous studies weighted on total sample size.
‡Percentages based on total sample tested for HIV and syphilis or hepatitis B. *Percentages based on HIV serostatus.
29 However, the authors used conservative random-effects meta-analyses models weighted on total sample size in an attempt to account for heterogeneity.
Similar(48)
In our study, psychometric tests were performed on the total sample and on two subsamples: the hospital and primary care samples.
Regressions 3, 7 are estimated on the total sample, regressions 4, 8 – on the sample of economically active.
For results based on the total sample of national adults, the margin of sampling error is ±4 percentage points at the 95% confidence level.
The margin of sampling error for results based on the total sample is plus or minus 3 percentage points. .
The margin of sampling error for results based on the total sample is plus or minus 3 percentage points.
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