• Thumbnail for Z-test
    A Z-test is any statistical test for which the distribution of the test statistic under the null hypothesis can be approximated by a normal distribution...
    12 KB (1,791 words) - 14:35, 4 February 2024
  • populations are significantly different. In many cases, a Z-test will yield very similar results to a t-test since the latter converges to the former as the size...
    49 KB (6,785 words) - 21:02, 28 June 2024
  • Thumbnail for Test statistic
    difference test is appropriate is when a single set of test subjects has something applied to them and the test is intended to check for an effect. Z-tests are...
    13 KB (1,099 words) - 12:19, 12 February 2024
  • Thumbnail for Standard score
    Standard score (redirect from Z-score)
    quantile z such that P ( − z < Z < z ) = γ {\displaystyle P\left(-z<Z<z\right)=\gamma } it follows: L = μ − z σ ,   U = μ + z σ {\displaystyle L=\mu -z\sigma...
    15 KB (1,883 words) - 08:50, 7 July 2024
  • Thumbnail for Generation Z
    consistently earned the top spots in international standardized tests in the 2010s. The name Generation Z is a reference to the fact that it is the second generation...
    223 KB (22,035 words) - 02:29, 16 July 2024
  • Thumbnail for Z-buffering
    the depth (z-value) of a generated fragment in the projected screen image is compared to the value already stored in the buffer (depth test), and replaces...
    17 KB (2,650 words) - 17:44, 6 April 2024
  • permutation tests, the distributions underlying many popular "classical" statistical tests, such as the t-test, F-test, z-test, and χ2 test, are obtained...
    22 KB (2,837 words) - 11:17, 17 July 2024
  • samples, where one could possibly perform Welch's t-test. Mathematics portal Student's t-test Z-test Factorial experiment One-way analysis of variance Hotelling's...
    12 KB (1,234 words) - 04:59, 13 June 2024
  • Thumbnail for Altman Z-score
    Zones of discrimination: Z > 2.6 – "safe" zone 1.1 < Z < 2.6 – "grey" zone Z < 1.1 – "distress" zone Standard score Z-test Z-factor Ohlson O-score Beneish...
    21 KB (1,515 words) - 16:05, 28 May 2024
  • z-score; analogously, rather than using a t-test, one uses a z-test. This is rare outside of standardized testing. Studentized residual: In regression analysis...
    11 KB (1,496 words) - 02:50, 1 April 2024