HP Prime Graphing NW280AAABA manual Getting started with the Inference app, Open, App

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Inference app

Sample data

The Inference app enables you to calculate confidence intervals and undertake hypothesis tests based on the Normal Z-distribution or Student’s t-distribution. In addition to the Inference app, the Math menu has a full set of probability functions based on various distributions (Chi-Square, F, Binomial, Poisson, etc.).

Based on statistics from one or two samples, you can test hypotheses and find confidence intervals for the following quantities:

•mean

•proportion

•difference between two means

•difference between two proportions

The Inference app comes with sample data (which you can always restore by resetting the app). This sample data is useful in helping you gain an understanding of the app.

Getting started with the Inference app

Let’s conduct a Z-Test on one mean using the sample data.

Open the	1. Open the Inference app:
Inference	ISelect
app	Inference
	The Inference app
	opens in Symbolic
	view.

Inference app 239