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  2. Shapiro–Wilk test - Wikipedia

    en.wikipedia.org/wiki/ShapiroWilk_test

    The ShapiroWilk test tests the null hypothesis that a sample x 1, ..., x n came from a normally distributed population. The test statistic is = (= ()) = (¯), where with parentheses enclosing the subscript index i is the ith order statistic, i.e., the ith-smallest number in the sample (not to be confused with ).

  3. File:Shapiro-Wilk Simulated CDF for n = 5, 10, 15, ..., 50 ...

    en.wikipedia.org/wiki/File:Shapiro-Wilk_Simulated...

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  4. Samuel Sanford Shapiro - Wikipedia

    en.wikipedia.org/wiki/Samuel_Sanford_Shapiro

    Samuel Sanford Shapiro (July 13, 1930 – November 5, 2023) was an American statistician and engineer. He was a professor emeritus of statistics at Florida International University . He was known for his co-authorship of the ShapiroWilk test and the Shapiro–Francia test .

  5. Shapiro–Francia test - Wikipedia

    en.wikipedia.org/wiki/Shapiro–Francia_test

    The Shapiro–Francia test is a statistical test for the normality of a population, based on sample data. It was introduced by S. S. Shapiro and R. S. Francia in 1972 as a simplification of the ShapiroWilk test .

  6. Wilks's lambda distribution - Wikipedia

    en.wikipedia.org/wiki/Wilks's_lambda_distribution

    Computations or tables of the Wilks' distribution for higher dimensions are not readily available and one usually resorts to approximations. One approximation is attributed to M. S. Bartlett and works for large m [2] allows Wilks' lambda to be approximated with a chi-squared distribution

  7. Download and install the AOL Shield Pro browser

    help.aol.com/articles/how-to-download-and...

    The AOL Shield Pro browser provides protection with a whole host of advanced security features, so you can worry less about online threats as you go about your day. To download and install AOL Shield Pro from your browser: Open your browser and visit the AOL Shield Pro page. Click Download For Free. Click Get the Free Browser.

  8. Wilks' theorem - Wikipedia

    en.wikipedia.org/wiki/Wilks'_theorem

    Each of the two competing models, the null model and the alternative model, is separately fitted to the data and the log-likelihood recorded. The test statistic (often denoted by D) is twice the log of the likelihoods ratio, i.e., it is twice the difference in the log-likelihoods:

  9. Medical debt saddles 1 in 10 York County residents. Gov ... - AOL

    www.aol.com/medical-debt-saddles-1-10-090416420.html

    Pa. Gov. Josh Shapiro wants to wipe out $400 million in medical debt with an infusion of $4 million in state funding. Medical debt saddles 1 in 10 York County residents. Gov.