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NCC 1080 Chapter 7 Materials

Author: mary daunis

Use TI83/84 to Find Confidence Interval for a Mean with Known Population Standard Deviation

use ZInterval

Source: itsallmine©

Use TI83/84 to Find Confidence Interval for a Proportion

This video shows how to construct a confidence interval for a proportion by using formulas and also by using the TI 83 graphing calculator.

Source: itsallmine©

Using TI Functions invT and TInterval

This shows how to use TI to get the value of t(a/2) and how to use the TInterval function to calculate a confidence interval.

Source: itsallmine©