Texas Instruments TI-Nspire Software Guide

Using Lists & Spreadsheet 229
Confidence Intervals
Supported Confidence Intervals
The following confidence intervals are available from the Lists &
Spreadsheets application. For complete information regarding these
functions, refer to the TI-Nspire Reference Guide details for the function
name that is in parentheses.
z Interval (zInterval)
z Interval (one-sample z confidence interval) computes a confidence
interval for an unknown population mean, m, when the population
standard deviation, s, is known. The computed confidence interval
depends on the user-specified confidence level.
This test is useful in determining how far from a population mean a
sample mean can get before indicating a significant deviation.
t Interval (tInterval)
t Interval (one-sample t confidence interval) computes a confidence
interval for an unknown population mean, m, when the population
standard deviation, s, is unknown. The computed confidence interval
depends on the user-specified confidence level.

Texas Instruments TI-Nspire Specifications

General

Type	Display
Form factor	Pocket
Product color	Blue, White
Display resolution	320 x 240 pixels
Display size (HxV) (imperial)	0 \
Compatible operating systems	Windows Vista/XP Mac OS X 10.4/10.5
Battery type	AAA
Number of batteries supported	4

Weight and Dimensions

Dimensions (WxDxH)	100 x 198.3 x 28.7 mm