n xbar stderr
4 430 22.5
4 418.2 20.6
3 435.5 25.1
4 427.6 22.3
4 444 21.5
3 431.4 28.9
4 420.8 25.4
4 431.4 24
4 428.7 21.2
4 440.1 25.8
4 445.2 27.3
4 430.1 22.2
4 427.2 24
4 439.6 23.3
3 415.9 31.2
4 419.8 27.5
3 447 19.8
4 434.4 23.7
4 422.2 25.1
4 425.7 24.4
