88Pack*?8 @EACTEACT1fX\؁hl(,\L4Pp======060607 =======v2-Prop Z Interval 2-Prop Z Interval uses the number of data items to calculate the confidence interval for the defference between the proportion of successes in two populations. 2-The following is the confidence interval. @ is the level of significance. The value 100 (1@)% is the confidence level. Left=xnxn(Z(@2)xn(1xn)nxn(1xn)n Right=xnxn(Z(@2)xn(1xn)nxn(1xn)n n,n:size of sample x,x:data @STAT[EXE]8Pack*?( @GUIDEXKEYLOG(,NOTET'$'2222222xz$|Data is specified using parameter specification. The following shows the meaning of each item. C-Level ... confidence level (0C-Level<1)x ........ data value (x0) of sample 1 n ........ size (positive integer) of sample 1 x ........ data value (x0) of sample 2n ........ size (positive integer) of sample 2Save Res .. list for storage of calculation results (None or List1 to 26) Execute ... executes a calculation @STAT[EXE]8Pack*?( @GUIDEPKEYLOG($NOTEL0 '$'   2$xz[F1Left ... confidence interval lower limit (left edge) Right .. confidence interval upper limit (right edge) r ..... estimated amsample propotion for sample 1 pr ..... estimated amsample propotion for sample 2opn ..... size of sample 1 n ..... size of sample 2