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I Z Interval
S 1-Sample Z Interval
1-Sample Z Interval calculates the confidence interval for an unknown population mean when
the population standard deviation is known.
Perform the following key operations from the statistical data list.
(INTR)
(Z)
(1-S)
The following shows the parameter data specification items that are different from list data
specification.
Calculation Result Output Example
S 2-Sample Z Interval
2-Sample Z Interval calculates the confidence interval for the difference between two
population means when the population standard deviations of two samples are known.
Perform the following key operations from the statistical data list.
(INTR)
(Z)
(2-S)
S 1-Prop Z Interval
1-Prop Z Interval uses the number of data to calculate the confidence interval for an unknown
proportion of successes.
Perform the following key operations from the statistical data list.
(INTR)
(Z)
(1-P)