- Conditional change model - The conditional change model in statistics is the analytic procedure in which change scores are regressed on baseline values, together with the explanatory variables of interest. The method has some substantial advantages over the usual two-sample t-test recommended in textbooks.
- F-test - An F-test is any statistical test in which the test statistic has an F-distribution under the null hypothesis.
- Student's t-statistic - In statistics, the t-statistic is the ratio of the departure of the estimated value of a parameter from its hypothesized value to its standard error. It is used in hypothesis testing.
- 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. Because of the central limit theorem, many test statistics are approximately normally distributed for large samples.
- Šidák correction for t-test
- Welch's t-test - In statistics, Welch's t-test, or unequal variances t-test, is a two-sample location test which is used to test the hypothesis that two populations have equal means.
- Parametric statistics

salparadise666 posted a photo:

Voigtländer Bergheil 9x12

from left to right:

- Heliar 135mm

- CZJ Vorsatzlinse 2/III

means185mm

- CZJ Vorsatzlinse 3/III

means 225mm

All pictures taken with f 6,3 but different time because of the extension factor.

Film is Fomapan [email protected]

Caffenol C-L 30min semi standcyberlink5690 posted a photo:

Vlachbild posted a photo:

Vlachbild posted a photo:

Vlachbild posted a photo:

Vlachbild posted a photo:

Ornö-Ubbe posted a photo:

jouwbaardagaam posted a photo:

een banner

pseudopop posted a photo:

star4danielle posted a photo:

Sierra Exif JPEG