HP 39gs Graphing Calculator Manual de usuario descargar pdf (Pagina 125)

Inference aplet 11-1

Inference aplet

About the Inference aplet

The Inference capabilities include calculation of

confidence intervals and hypothesis tests based on the

Normal Z-distribution or Student’s t-distribution.

Based on the 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

Example data When you first access an input form for an Inference test,

by default, the input form contains example data. This

example data is designed to return meaningful results that

relate to the test. It is useful for gaining an understanding

of what the test does, and for demonstrating the test. The

calculator’s on-line help provides a description of what

the example data represents.

Getting started with the Inference aplet

This example describes the Inference aplet’s options and

functionality by stepping you through an example using

the example data for the Z-Test on 1 mean.

Open the

Inference aplet

1. Open the Inference aplet.

Select Inference

The Inference aplet

opens in the Symbolic

view.

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HP 39gs Graphing Calculator Manual de usuario Pagina 125