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2. A/B testing - Wikipedia

   en.wikipedia.org/wiki/A/B_testing

   Overview [ edit] "A/B testing" is a shorthand for a simple randomized controlled experiment, in which a number of samples (e.g. A and B) of a single vector-variable are compared. [1] These values are similar except for one variation which might affect a user's behavior. A/B tests are widely considered the simplest form of controlled experiment ...

3. Sample size determination - Wikipedia

   en.wikipedia.org/wiki/Sample_size_determination

   Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined ...

4. Effect size - Wikipedia

   en.wikipedia.org/wiki/Effect_size

   In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of a parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size value.

5. Home prices could start dropping this summer, marking the ...

   www.aol.com/finance/home-prices-could-start...

   For his part, the Macro Institute's Nick noted that the number of existing homes for sale is now up 8%-10% annually, suggesting that prices will soon come down.

6. Phases of clinical research - Wikipedia

   en.wikipedia.org/wiki/Phases_of_clinical_research

   The phases of clinical research are the stages in which scientists conduct experiments with a health intervention to obtain sufficient evidence for a process considered effective as a medical treatment. [1] For drug development, the clinical phases start with testing for drug safety in a few human subjects, then expand to many study ...

7. Housing Costs And Interest Rates Are Weighing Heavily On ...

   www.aol.com/housing-costs-interest-rates...

   As inflation concerns hit their highest levels in recent years, American consumers are increasingly worried about housing costs and interest rates, according to a new study issued by TransUnion ...