"Chem 223 Class Results for Titration of HCl with Various Indicators, Fall 2004",,,,
(Each line summarizes results from one student),,,,
Indicator,n,Mean,sx, % RSD
bromocresolgreen,6,0.09530,0.00030,0.316426748
bromocresolgreen,7,0.09487,0.00071,0.744739263
bromocresolgreen,8,0.09485,0.00035,0.373813499
bromocresolgreen,7,0.09521,0.00015,0.161669623
bromothymolblue,5,0.09591,0.00026,0.273232993
bromothymolblue,6,0.09668,0.00083,0.858733073
bromothymolblue,4,0.09629,0.00010,0.101450117
erythrosine,6,0.09331,0.00029,0.311344054
erythrosine,6,0.09307,0.00030,0.318023822
erythrosine,6,0.09240,0.00011,0.11590128
methylorange,6,0.09537,0.00019,0.196259666
methylorange,6,0.09545,0.00047,0.489400309
methylorange,6,0.09452,0.00232,2.454426325
methylorange,7,0.09611,0.00119,1.241110535,,
methylorange,5,0.09465,0.00035,0.367079235,,
methylorange,6,0.09508,0.00013,0.141337027,,
methylred,7,0.09534,0.00061,0.643875265,,
methylred,5,0.09536,0.00013,0.138012604,,
methylred,6,0.09538,0.00004,0.046614066,,
,,,,,,
,,,,,,
Pooled Data,,,,,,
Indicator,n,S,mean [HCl],sx,%RSD,sp
bromocresolgreen,28,4,0.0950426,0.0004551,,
bromothymolblue,15,3,0.0963198,0.0006173,,
erythrosine,18,3,0.0929255,0.0004577,,
methylorange,36,6,0.0952360,0.0011712,,
methylred,18,3,0.0953593,0.0003713,,

Totals,115,19