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  1. Hypothesis - Wikipedia


    A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon.For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories. Even though the words "hypothesis" and "theory" are often used ...

  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. Glossary


    Alternative Hypothesis Calorie Carbohydrate Fatty acid Glycogen Insulin Insulin resistance Ketosis (or keto-adaptation) Metabolic syndrome Ordered terms Sugar Triglyceride Alternative Hypothesis – Obesity is a growth disorder, just like any other growth disorder, and fat accumulation is determined not by the balance of calories consumed and expended but by the effect of specific nutrients on ...

  4. 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.

  5. Hypothesis Testing for Means & Proportions


    This is the first of three modules that will addresses the second area of statistical inference, which is hypothesis testing, in which a specific statement or hypothesis is generated about a population parameter, and sample statistics are used to assess the likelihood that the hypothesis is true.

  6. How to Assess Statistical Significance: 15 Steps (with ...


    Hypothesis testing is guided by statistical analysis. Statistical significance is calculated using a p-value, which tells you the probability of your result being observed, given that a certain statement (the null hypothesis) is true. [1] If this p-value is less than the significance level set ...

  7. Hypothesis Representation - Logistic Regression | Coursera


    Machine learning is the science of getting computers to act without being explicitly programmed. In the past decade, machine learning has given us self-driving cars, practical speech recognition, effective web search, and a vastly improved understanding of the human genome.

  8. Section 9.2 critical values - University of Iowa

    homepage.stat.uiowa.edu/.../notes/Section_9.2_critical_values.pptx.pdf · Файл PDF

    Stat 1010 – critical values We assume the null is true, so we put the stated value of p from the null hypothesis into the formula for the mean and standard deviation. Step 3: ! What normal distribution?

  9. Statistical Power | Real Statistics Using Excel


    Mark, My response can be found on the same webpage from where you made your comment. Here is the response I sent you then: What do you see when you enter the following formula?

  10. Hypothesis Testing: Upper-, Lower, and Two Tailed Tests


    The procedure for hypothesis testing is based on the ideas described above. Specifically, we set up competing hypotheses, select a random sample from the population of interest and compute summary statistics. We then determine whether the sample data supports the null or alternative