Provides methods for Neutrosophic Analysis of Variance (NANOVA) for split-plot and strip-plot experimental designs using interval-valued observations. The package computes neutrosophic sums of squares, mean squares, interval-valued F-statistics, significance tests, and Least Significant Difference (LSD) based multiple comparisons for main plot, sub plot, horizontal factor, vertical factor, and interaction effects. For crisp data, users may provide identical lower and upper response values to obtain results equivalent to classical analysis of variance. The basic idea of neutrosophic statistics is obtained from Smarandache (2014) < https://fs.unm.edu/NeutrosophicStatistics.pdf>, while the analysis procedures implemented in this package are newly developed.