# Noise Annoyance in Physical Sciences: Perspective 2015-2024
## 3 Results
It was assumed that when \(p\)-values are significantly lower than 0.05, the zero hypothesis can be rejected, which means that there are statistically significant differences between the distribution of the analyzed categories in the years 2015-2019 and 2020-2024, while in the opposite case, when \(p\)-values are significantly higher than the assumed significance level, there is no basis for rejecting the zero hypothesis, which means that no statistically significant differences  
Figure 5: Number of publications in 2015–2019 and 2020–2024 in the noise source category. were detected. The results indicate a lack of statistically significant premises for rejecting the null hypothesis. The discussed results are presented in Table 2.  
If a country appeared in no more than one publication, it was classified to the Other area, which occurred in 33 cases (29.46% of all publications). The largest representation in the examined articles was held by Germany--17 (15.18% of all publications), Switzerland--11 (9.82%), and France--10 (8.93%). The remaining affiliations concerned Great Britain--nine (8.04%), Spain--eight (7.14%), United States, United States, China, Italy--seven each (6.25% each), Netherlands, India, Malaysia--six each (5.36% each), and Poland--five (4.46%). The discussed results are presented in Figure 7.  
Considering the above-mentioned results of the analysis (Tables 1 and 2, Figures 3-7), some additional relationships can be observed. In the designated time intervals (2015-2019 and 2020-2024), the same number of publications were listed (56 in each), which initially might suggest a constant level of interest in the issue. However, a closer look at the yearly distribution reveals a more dynamic trend in publication output. Specifically, the number of documents fluctuated across the years: 2015 saw 6 publications, followed by a gradual increase to 11 in 2016 and 9 in 2017. A notable rise occurred in 2018 with 14 publications, \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Country** & **2015–2019** & **2020–2024** & **All Years** & **Share [\%]** & **Chi-Square** \\ \hline All countries & 56 & 56 & 112 & 100.0 \\ Germany & 11 & 6 & 17 & 15.18 \\ Switzerland & 6 & 5 & 11 & 9.82 \\ France & 5 & 5 & 10 & 8.93 \\ United Kingdom & 6 & 3 & 9 & 8.04 \\ Spain & 4 & 4 & 8 & 7.14 \\ United States & 4 & 3 & 7 & 6.25 \\ China & 2 & 5 & 7 & 6.25 \\ Italy & 3 & 4 & 7 & 6.25 \\ Netherlands & 3 & 3 & 6 & 5.36 \\ India & 2 & 4 & 6 & 5.36 \\ Malaysia & 6 & 0 & 6 & 5.36 \\ Poland & 2 & 3 & 5 & 4.46 \\ Other & 13 & 20 & 33 & 29.46 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Number of publications in 2015–2019 and 2020–2024 in various countries. Figure 6: Number of publications in 2015–2019 and 2020–2024 in the methodology category. peaking at 16 in 2019. The subsequent period (2020-2024) began with 7 publications in 2020, followed by a decrease to 6 in 2021, and then a steady increase to 16 in both 2022 and 2023, before slightly decreasing to 13 in 2024. Despite the equal total number of publications in both five-year periods, changes in the distribution of interests in individual topics related to noise can be observed. There was a clear increase in interest in the engineering area (an increase of 66.67% compared to the years 2015-2019), which may be related to the increase in the frequency of using the experimental method (an increase of 28.12% compared to the period 2015-2019) and an increase in the percentage of scientific articles (an increase of 14.71% compared to the period 2015-2019). The experiment is naturally related to technical sciences, which may also be related to the increased number of affiliations of authors from China in the period 2020-2024 (an increase of 150% compared to 2015-2019), who are leaders in this field of technical science. In view of these observations, it was considered interesting to also statistically check the cross-correlations between the designated categories.