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When sample size is less than 30 what is the best test z test, T test, Anova test or Chi square test? Qual a massa de NaOH necessária para precipitar todos íons Fe2+ de 25,0 mL de uma solução 0,50 mol/L de Fe(NO)2? Find the slope and Y intercept of the line 3x-2y=12? I need help in math
anyone can help me pleasse? We used to measure temperature in degrees centigrade. Now we call it celcius, why the change?