Table 5 The Shapiro–Wilk Normality Tests of Leq at Various Monitoring Sites in Mashhad in 2019 and 2020.

From: Short-term analysis of urban noise dynamics during covid-19 lockdown using a machine learning approach in Mashhad, Iran

Station name

Time frame

Shapiro–Wilk

Statistic

df

Sig

Chaman-mosalla intersection

Pre-lockdown

0.815

713

0.000

Lockdown

0.905

713

0.000

15 Khordad square

Pre-lockdown

0.836

713

0.000

Lockdown

0.959

713

0.000

Moffatteh-tabarsi intersection

Pre-lockdown

0.836

713

0.000

Lockdown

0.959

713

0.000

Shohada intersection

Pre-lockdown

0.901

713

0.000

Lockdown

0.901

713

0.000