Casio FX-9860GII-L-IH User Guide - Page 340
Confidence Interval, mean of sample 2
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6-6-5 Confidence Interval The following shows the meaning of each item in the case of list data specification. Data data type C-Level confidence level (0 < C-Level < 1) σ1 population standard deviation of sample 1 (σ1 > 0) σ2 population standard deviation of sample 2 (σ2 > 0) 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) Save Res list for storage of calculation results (None or List 1 to 26) Execute executes a calculation The following shows the meaning of parameter data specification items that are different from list data specification. o1 mean of sample 1 n1 size (positive integer) of sample 1 o2 mean of sample 2 n2 size (positive integer) of sample 2 After setting all the parameters, use c to move the highlighting to "Execute" and then press the function key shown below to perform the calculation. • 1(CALC) ... Performs the calculation. Calculation Result Output Example Left confidence interval lower limit (left edge) Right confidence interval upper limit (right edge) o1 mean of sample 1 o2 mean of sample 2 x1σn-1 standard deviation of sample 1 (Displayed only for Data: List setting.) x2σn-1 standard deviation of sample 2 (Displayed only for Data: List setting.) n1 size of sample 1 n2 size of sample 2 20050401