[8Pack*?8 @EACTtEACT1`f"ԁ\`Ppt́ЁLЁ@DX\Ё======060603 =======vZ Interval Z 1-Sample Z Interval 1-Sample Z Interval calculates the confidence interval for an unknown population mean when the population standard deviation is known. 1-The following is the confidence interval. .w Left=™(Z(@2)Qn) } Right=‰(Z(@2)@n However, @ is the level of significance. The value 100 (1@)% is the confidence level. tWhen the confidence level is 95%, for example, inputting 0.95 produces 10.95=0.05=@.@STAT[EXE]8Pack*?( @GUIDETKEYLOG((NOTEP'$$222222xzWheThe following shows the meaning of each item in the case of list data specification. The Data ...... data type C-Level ... confidence level (0C-Level<1) Q ......... population standard deviation (Q>0) List ...... list whose contents you want to use as sample data (List1 to 26) Freq ...... sample frequency (1 or List1 to 26) Save Res .. list for storage of calculation results (None or List1 to 26) Execute ... executes a calculation The following shows the meaning of parameter data specification items that are different from list data specification. ... mean of sample n ... size of sample (positive integer) @STAT[EXE]88Pack*?( @GUIDEKEYLOG(NOTE '$$$2 $222$xz Left .... confidence interval lower limit (left edge) Right ... confidence interval upper limit (right edge) ....... mean of sample xQ .... sample standard deviation (Displayed only for Data: List setting.) n ....... size of sample 0