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  1. Null and Alternative Hypothesis | Real Statistics Using Excel


    Describes how to test the null hypothesis that some estimate is due to chance vs the alternative hypothesis that there is some statistically significant effect.

  2. Statistical hypothesis testing - Wikipedia


    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.

  3. Research Hypothesis - Explorable


    The precursor to a hypothesis is a research problem, usually framed as a question.It might ask what, or why, something is happening. For example, we might wonder why …

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


    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."

  5. Null hypothesis - Wikipedia


    The history of the null and alternative hypotheses is embedded in the history of statistical tests. Before 1925: There are occasional transient traces of statistical tests for centuries in the past, which provide early examples of null hypotheses. In the late 19th century statistical significance was defined.

  6. Null Hypothesis - The Commonly Accepted 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 ...

  7. Hypothesis Testing - levels, examples, definition, type ...


    Encyclopedia of Business, 2nd ed. Hypothesis Testing: Gr-Int. Social science research, and by extension business research, uses a number of different approaches to study a variety of issues.

  8. Alternative energy | Define Alternative ... - dictionary.com


    Alternative energy definition, energy, as solar, wind, or nuclear energy, that can replace or supplement traditional fossil-fuel sources, as coal, oil, and natural gas. See more.

  9. Hypothesis Testing - homepages.math.uic.edu

    homepages.math.uic.edu/~bpower6/stat101/Hypothesis Testing 1.pdf · Файл PDF

    Constructing a Hypothesis Test Define your Null and Alternative Hypotheses H 0 (pronounced “H naught”) is the null hypothesis.This is typically the default assumption – assuming no change, or that a

  10. What is an alternative? definition and meaning ...


    One of the two or more ways of achieving the same desired end or goal.An alternative does not have to be a close substitute for the first choice (or other alternatives), or must solve the problem in a particular way. For example, bundling, extensive promotion, lower price, money-back guaranty, special offer, etc., are all alternative ways for achieving the same end: greater sales revenue.