Texas Instruments TINSPIRE Reference Guide - Page 119

zInterval_2Prop zInterval_2Prop x1,n1,x2,n2[,CLevel] Computes a two-proportion z confidence interval. A summary of results is stored in the stat.results variable. (See page 97.) x1 and x2 are non-negative integers. For information on the effect of empty elements in a list, see "Empty (void) elements" on page 131. Output variable Description stat.CLower, stat.CUpper Confidence interval containing confidence level probability of distribution stat.Ç Diff The calculated difference between proportions stat.ME Margin of error stat.Ç1 First sample proportion estimate stat.Ç2 Second sample proportion estimate stat.n1 Sample size in data sequence one stat.n2 Sample size in data sequence two zInterval_2Samp zInterval_2Samp s1,s2 ,List1,List2[,Freq1[,Freq2,[CLevel]]] (Data list input) zInterval_2Samp s1,s2,v1,n1,v2,n2[,CLevel] (Summary stats input) Computes a two-sample z confidence interval. A summary of results is stored in the stat.results variable. (See page 97.) For information on the effect of empty elements in a list, see "Empty (void) elements" on page 131. Output variable Description stat.CLower, stat.CUpper Confidence interval containing confidence level probability of distribution stat.x1-x2 Sample means of the data sequences from the normal random distribution stat.ME Margin of error stat.x1, stat.x2 Sample means of the data sequences from the normal random distribution stat.sx1, stat.sx2 Sample standard deviations for List 1 and List 2 stat.n1, stat.n2 Number of samples in data sequences stat.r1, stat.r2 Known population standard deviations for data sequence List 1 and List 2 Catalog > Catalog > TI-Nspire™ Reference Guide 113