Percentiles - Ungrouped Data
p	Weighted Average at Xnp	Weighted Average at X(n+1)p	Empirical Distribution Function	Empirical Distribution Function - Averaging	Empirical Distribution Function - Interpolation	Closest Observation	True Basic - Statistics Graphics Toolkit	MS Excel (old versions)
0.25	217.7165	227.325	246.542	246.542	246.542	208.108	227.325	227.325
0.5	285.291	324.04	324.04	324.04	324.04	324.04	324.04	324.04
0.75	328.93225	367.0595	330.563	330.563	330.563	330.563	367.0595	367.0595