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