Texas Instruments TI-82 STATS User Manual

13–20 Inferential Statistics and Distributions
8250FC~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:39 PM Printed: 10/27/05 2:57
PM Page 20 of 36
1.PropZInt (one-proportion z confidence interval; item A)
computes a confidence interval for an unknown proportion of
successes. It takes as input the count of successes in the sample
x and the count of observations in the sample n. The computed
confidence interval depends on the user-specified confidence
level.
Input:
,
Calculated results:
STAT TESTS Menu (continued)
1.PropZInt

Texas Instruments TI-82 STATS Specifications

General

Type	Graphing Calculator
Display	LCD
Resolution	96 x 64 pixels
Characters	16 x 8
Processor	Zilog Z80
Programming	TI-BASIC
Memory	28 KB RAM
Power	4 AAA batteries
Connectivity	Link port