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  1. Statistical significance - Wikipedia

    Statistical significance plays a pivotal role in statistical hypothesis testing. It is used to determine whether the null hypothesis should be rejected or retained.

  2. Statistical Significance: Definition, Examples - Statistics How To

    Statistical significance is a measure of whether your research findings are meaningful. More specifically, it’s whether your stat closely matches what value you would expect to find in an entire population.

  3. An Easy Introduction to Statistical Significance (With Examples)

    Jan 7, 2021 · Statistical significance is a term used by researchers to state that it is unlikely their observations could have occurred under the null hypothesis of a statistical test.

  4. Statistical Significance: Definition & Meaning - Statistics By Jim

    Nov 7, 2022 · Statistical significance indicates that an effect you observe in a sample is unlikely to be the product of chance. For statistically significant results, you can conclude that an effect you observe in …

  5. Understanding P-Values and Statistical Significance

    Aug 11, 2025 · Definition: A p-value measures how likely your observed results (or more extreme ones) would be if the null hypothesis were true. It is a tool for assessing evidence against the null. …

  6. Understanding Statistical Significance - Statology

    Feb 21, 2025 · Statistical significance is an important concept in data analysis, interpreting if results are real or just happened by chance. Researchers use statistical significance to find patterns or effects in …

  7. Statistical significance | Definition, History, & Facts | Britannica

    statistical significance, in statistics, the determination that a result or an observation from a set of data is due to intrinsic qualities and not random variance of a sample.

  8. Statistical Significance: Definition, Calculation, Importance

    Sep 19, 2025 · Scientists use statistical significance to determine if results are meaningful and not just due to chance. This helps researchers understand if differences or patterns in their data are accurate.

  9. Statistical significance - Centers for Disease Control and Prevention

    Jul 30, 2024 · Statistical significance of differences or trends is partly a function of sample size (that is, the larger the sample, the smaller the change that can be detected), and statistical significance does …

  10. Statistical significance Definition - AP Statistics Key Term | Fiveable

    Statistical significance indicates whether the observed effects in data are likely genuine or simply due to random chance. By using a p-value and comparing it to a predetermined alpha level, researchers …