Noise Health Close
 

Figure 2: Impact of traffic noise varying in level on mental arithmetic performance and on subjectively rated annoyance in Experiment 2 (n = 18). Medians of error rates (errors bars depicting the first and third quartile) are plotted as well as annoyance rating means with standard errors

Figure 2: Impact of traffic noise varying in level on mental arithmetic performance and on subjectively rated annoyance in Experiment 2 (<i>n</i> = 18). Medians of error rates (errors bars depicting the first and third quartile) are plotted as well as annoyance rating means with standard errors