Table 2.

The empirical results of two-sample difference-of-proportions t-test.

Positivity
t = 7.78	df = 1	p-value = 0.00527
alternative hypothesis: true difference in positivity proportions is not equal to 0
95 percent confidence interval: 0.0229 0.2908
proportion of positivity in pre-pandemic = 0.823 proportion of positivity in pandemic = 0.666
Negativity
t = 10.62	df = 1	p-value = 0.0011
alternative hypothesis: true difference in negativity proportions is not equal to 0
95 percent confidence interval: 0.0013 0.173
proportion of negativity in pre-pandemic = 0.964 proportion of negativity in pandemic = 0.877