Voice and overstretched work demands
Table 1 presents the relationship between voice and overstretched work demands from the group of 304 participants. A total of 47.37% of respondents reported that they had a voice problem along with overstretched work demands. Only 8.88% of those who reported overstretched work demands had no voice problem. A chi-squared test was run to test the hypothesis that these variables are not related. χ2 (2; n = 304) was calculated to be 4.46 which allows us to reject the null hypothesis using an alpha level of 0.05. This indicates that voice problems were more likely to be related to overstretched work demands than not. This can be stated with 96.52% confidence.