<s>[INST] A study compared the amount of time individuals spent watching TV per day in two different countries. The mean amount of time spent watching TV in country A was 3.5 hours, with a standard deviation of 1.8 hours. In country B, the mean amount of time spent watching TV was 2.8 hours, with a standard deviation of 1.5 hours. The sample sizes for country A and country B were 100 and 120, respectively.
Using a two-sample t-statistic, what is the calculated value of t?[/INST]