In the world of mobile gaming, a game developer asserts that the response time of players to in-game challenges is on average 3 seconds with a variance of 1 second making the gaming experience seamless. To test this claim, the developer records the response times of five players on a particular day: 1.9, 2.4, 3.0, 3.5, and 4.2 seconds. Find a 95% confidence interval for the variance in players' response times.