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Ms. Brown said the latest estimate was based on a review of 5,223 claims for $5.4 million worth of services provided to 600 beneficiaries, and she insisted that the sample was "statistically valid".
The above sample was statistically representative of the student population at a 95% confidence level (margin of error of 2%).
The difference in mean slope between the severely anemic sample and the healthy sample was statistically significant (estimated difference = 2.2, SE =.65, P =.01).
Data for each sample was statistically analysed using Student's t-test (P < 0.05).
Prior to 2009 reforms, higher income in our sample was statistically significantly related to higher probability of obtaining reimbursement, as well as higher levels and rates of reimbursement.
The control sample was statistically matched to the clinical sample on sex, age, and educational level, and they were free of significant symptoms of psychiatric illness assessed with the interview Comprehensive Assessment of Symptoms and History (CASH) [ 28].
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A popular modification of the KS test is to use a signed version of the KS statistic to infer whether the values of one sample are statistically larger than the values of the other.
That means it's not clear who answered the questions and whether the sample is statistically representative.
Even though using anti-caking aids is common across the industry and approved by the FDA, and testing a single sample is statistically unreliable, our compliance team is looking into these findings with the supplier.
It is good scientific practice to analyze true replicates of a sample and to assess whether observed differences within one sample are statistically meaningful.
The difference in prevalence of SEPT9 DNA between polyp and control samples was statistically significant (p = 0.02, Table 2).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com