ERGONOMÍA OCUPACIONAL - SOCIEDAD DE ERGONOMISTAS ...

4.1 Analysis of correlation.
Ergonomía Ocupacional. Investigaciones y Aplicaciones. Vol 3 2010
In the figure 1 is shown the correlation between temperature and strength in the 7 days, where r is
0.041. As r is 0.041 and 0.119 which is lower than the critical value we conclude that H0 is not
rejected as there is insufficient evidence to conclude that there is a significant linear correlation.
Figure 1: Correlation between Temperature (°C) and
Strength (Kg) of the operator 1 in the 7 days.
In the figure 2 is shown the correlation between cycles per minute and temperature in the 7
days, where r is 0.292. As r is 0.292 and 0.119 which is greater than the critical value we conclude
that there is a significant linear correlation, and H0 is rejected.
Figure 2: Correlation between cycles per minute and
temperature (°C) of the operator 1 in the 7 days.
Sociedad de Ergonomistas de México, A.C. 108