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  1. Null hypothesis - Wikipedia

    https://en.wikipedia.org/wiki/Null_hypothesis

    In inferential statistics, the null hypothesis is a general statement or default position that there is no relationship between two measured phenomena, or no association among groups. Testing (accepting, approving, rejecting, or disproving) the null hypothesis—and thus concluding that there are or are not grounds for believing that there is a relationship between two phenomena (e.g. that a ...

  2. What is a null hypothesis? definition and meaning ...

    www.businessdictionary.com/definition/null-hypothesis.html

    A proposition that undergoes verification to determine if it should be accepted or rejected in favor of an alternative proposition. Often the null hypothesis is expressed as "There is no relationship between two quantities.". For example, in market research, the null hypothesis would be "A ten-percent increase in price will not adversely affect the sale of this product."

  3. Null Hypothesis - The Commonly Accepted Hypothesis

    https://explorable.com/null-hypothesis

    The simplistic definition of the null is as the opposite of the alternative hypothesis, H 1, although the principle is a little more complex than that.. The null hypothesis (H 0) is a hypothesis which the researcher tries to disprove, reject or nullify.. The 'null' often refers to the common view of something, while the alternative hypothesis is what the researcher really thinks is the cause ...

  4. Statistical hypothesis testing - Wikipedia

    https://en.wikipedia.org/wiki/Statistical_hypothesis_testing

    Variations and sub-classes. Statistical hypothesis testing is a key technique of both frequentist inference and Bayesian inference, although the two types of inference have notable differences.Statistical hypothesis tests define a procedure that controls (fixes) the probability of incorrectly deciding that a default position (null hypothesis) is incorrect.

  5. Null and Alternative Hypothesis | Real Statistics Using Excel

    www.real-statistics.com/hypothesis-testing/null-hypothesis

    Jessica, If you reject the null hypothesis, then you would conclude that there is a significant difference between the scores of patients being tested with those know to have dementia.

  6. Null Hypothesis - Investopedia

    https://www.investopedia.com/terms/n/null_hypothesis.asp

    The null hypothesis is the initial statistical claim that the population mean is equivalent to the claimed. For example, assume the average time to cook a specific brand of pasta is 12 minutes.

  7. Null Hypothesis | Definition of Null Hypothesis by Merriam ...

    https://www.merriam-webster.com/dictionary/null hypothesis

    Recent Examples on the Web. Reaching a null hypothesis often means that an experiment is doomed for nonpublishing—even though null and negative results can teach us just as much as positive results. — Dalmeet Singh Chawla, Slate Magazine, "Do Men Eat More Pizza in Front of Women?," 3 Feb. 2017 The p-value actually means that the data in question has less than a 5 percent chance of being ...

  8. Hypothesis testing - Handbook of Biological Statistics

    www.biostathandbook.com/hypothesistesting.html

    Summary. One of the main goals of statistical hypothesis testing is to estimate the P value, which is the probability of obtaining the observed results, or something more extreme, if the null hypothesis were true. If the observed results are unlikely under the null hypothesis, your reject the null hypothesis.

  9. How to Set Up a Hypothesis Test: Null versus Alternative ...

    https://www.dummies.com/education/math/statistics/how-to-set-up-a...

    When you set up a hypothesis test to determine the validity of a statistical claim, you need to define both a null hypothesis and an alternative hypothesis. Researchers often challenge claims about population parameters. You may hypothesize, for example, that the actual proportion of women who have ...

  10. Glossary of Statistical Terms - Department of Statistics

    https://www.stat.berkeley.edu/~stark/SticiGui/Text/gloss.htm

    Glossary of Statistical Terms You can use the "find" (find in frame, find in page) function in your browser to search the glossary.