20050401The following confidence interval applies when pooling is not in effect. α is the level ofsignificance. The value 100 (1 – α) % is the confidence level.Left = (o1 – o2 )– tdfα2Right = (o1 – o2 )+ tdfα2+n1x1 n–12σ n2x2 n–12σ+n1x1 n–12σ n2x2 n–12σC =df = 1C 2n1–1 + (1–C) 2n2–1+n1x1 n–12σn1x1 n–12σn2x2 n–12σPerform the following key operations from the statistical data list.4(INTR)2(t)2(2-S)The following shows the meaning of each item in the case of list data specification.Data ............................ data typeC-Level ........................ confidence level (0 < C-Level < 1)List(1) .......................... list whose contents you want to use as data of sample 1(List 1 to 26)List(2) .......................... list whose contents you want to use as data of sample 2(List 1 to 26)Freq(1) ........................ frequency of sample 1 (1 or List 1 to 26)Freq(2) ........................ frequency of sample 2 (1 or List 1 to 26)Pooled ......................... pooling On (in effect) or Off (not in effect)Save Res .................... list for storage of calculation results (None or List 1 to 26)Execute ....................... executes a calculationThe following shows the meaning of parameter data specification items that are differentfrom list data specification.6-6-10Confidence Interval
