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12:50 Jan 31, 2018 |
Russian to English translations [PRO] Medical - Mathematics & Statistics | |||||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 09:04 | ||||||
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3 | the probability of normality compliance |
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3 | normal probability plot correlation coefficient |
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the probability of normality compliance Explanation: The frequency distribution (histogram), stem-and-leaf plot, boxplot, P-P plot (probability-probability plot), and Q-Q plot (quantile-quantile plot) are used for checking normality visually ... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693611/ -------------------------------------------------- Note added at 13 mins (2018-01-31 13:04:03 GMT) -------------------------------------------------- In probability theory, the central limit theorem (CLT) establishes that, in most situations, when independent random variables are added, their properly normalized sum tends toward a normal distribution (informally a "bell curve") even if the original variables themselves are not normally distributed. The theorem is a key ... https://en.wikipedia.org/wiki/Central_limit_theorem Normal probability plots are often used as an informal means of assessing the non- normality of a set of data. One problem confronting persons inexperienced with probability plots is that considerable practice is necessary before one can learn to judge them with any degree of confidence. https://www.minitab.com/uploadedFiles/Content/News/Published... |
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normal probability plot correlation coefficient Explanation: The closest statistical term to what вероятность соответствия нормальности is trying to convey is "normal probability plot correlation coefficient." cccccc This table contains the critical values of the normal probability plot correlation coefficient (PPCC) distribution that are appropriate for determining whether or not a data set came from a population with approximately a normal distribution. It is used in conjuction with a normal probability plot. The test statistic is the correlation coefficient of the points that make up a normal probability plot. This test statistic is compared with the critical value below. If the test statistic is less than the tabulated value, the null hypothesis that the data came from a population with a normal distribution is rejected. http://www.itl.nist.gov/div898/handbook/eda/section3/eda3676... cccccc Statistical analysis Group comparisons were made using Student's t-tests for independent samples and anova, at a 95% confidence level. Pearson correlation analyses were also performed on the uninfected newborns, grouped on the basis of obstetric parameters. All groups of data were tested for normality using the normal probability plot, and the normal probability correlation coefficient (Rt). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1905017/ cccccc This paper introduces the normal probability plot correlation coefficient as a test statistic in complete samples for the composite hypothesis of normality https://www.jstor.org/stable/1268008?seq=1#page_scan_tab_con... cccccccccccccccccccccccccccccccccccc |
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