The residuals then sufficiently approximated a normal distribution as can be seen by visual inspection of the histograms (Figure 5). Figure 4 Residualplot for C storage in humus before (a) and after (b) lognormal transformation.
It is frequently found experimentally that over a wide range of scintillation indices the distribution of log field amplitude is a normal distribution, as are the log intensity variations measured at a point [156].
For the second group, the copy number of all segments followed a normal distribution as well.
Hospital costs were log transformed to achieve a normal distribution as far as possible.
The z-score graph produced by the dataset showed that unmethylated CGIs show a normal distribution as well.
The model of chance occurrence is generated by permutation of the input data, rather than a predetermined model (e.g. a normal distribution), as is used by the t-test.
(iv) The temporal fixation rate of each CR1 subtype can be described by a normal distribution as is shown by the divergences of its single copies from their consensus sequences (additional data file 1).
The normalized data followed a normal distribution as presented in Figure S1B and S1C.
This preliminary analysis showed that SUVmax, SUVmean35, and SUVglu had certain linearity and a data distribution close to a normal distribution as demonstrated by normality tests (Shapiro-Milk and Kolmogorov-Smirnov) and QQ-plots.
For the alternative model, we assume that y conditional on X is subject to a normal distribution, as with residuals independent and identically distributed, following normal density with mean 0 and variance σ.
The Friedman non-parametric test was chosen because not all the quantitative values had a normal distribution, as tested with the Shapiro Wilk normality test.
