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2. Z-test - Wikipedia

   en.wikipedia.org/wiki/Z-test

   The term "Z-test" is often used to refer specifically to the one-sample location test comparing the mean of a set of measurements to a given constant when the sample variance is known. For example, if the observed data X 1 , ..., X n are (i) independent, (ii) have a common mean μ, and (iii) have a common variance σ 2 , then the sample average ...

3. One- and two-tailed tests - Wikipedia

   en.wikipedia.org/wiki/One-_and_two-tailed_tests

   If the test is performed using the actual population mean and variance, rather than an estimate from a sample, it would be called a one-tailed or two-tailed Z-test. The statistical tables for t and for Z provide critical values for both one- and two-tailed tests. That is, they provide the critical values that cut off an entire region at one or ...

4. List of statistical tests - Wikipedia

   en.wikipedia.org/wiki/List_of_statistical_tests

   Test name Scaling Assumptions Data Samples Exact Special case of Application conditions One sample t-test: interval: normal: univariate: 1: No [8]: Location test: Unpaired t-test: interval

5. Student's t-test - Wikipedia

   en.wikipedia.org/wiki/Student's_t-test

   A one-sample Student's t-test is a location test of whether the mean of a population has a value specified in a null hypothesis. In testing the null hypothesis that the population mean is equal to a specified value μ 0, one uses the statistic = ¯ /,

6. Wilcoxon signed-rank test - Wikipedia

   en.wikipedia.org/wiki/Wilcoxon_signed-rank_test

   The Wilcoxon signed-rank test is a non-parametric rank test for statistical hypothesis testing used either to test the location of a population based on a sample of data, or to compare the locations of two populations using two matched samples. [1] The one-sample version serves a purpose similar to that of the one-sample Student's t-test. [2]

7. Sign test - Wikipedia

   en.wikipedia.org/wiki/Sign_test

   The sign test is a statistical test for consistent differences between pairs of observations, such as the weight of subjects before and after treatment. Given pairs of observations (such as weight pre- and post-treatment) for each subject, the sign test determines if one member of the pair (such as pre-treatment) tends to be greater than (or less than) the other member of the pair (such as ...

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9. Standard score - Wikipedia

   en.wikipedia.org/wiki/Standard_score

   Comparison of the various grading methods in a normal distribution, including: standard deviations, cumulative percentages, percentile equivalents, z-scores, T-scores. In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above or below the mean value of what is being observed or measured.