Hp 49g Graphing Calculator Manual de usuario descargar pdf (Pagina 175)

The following statistical plot types are available:

® Histogram

® Bar

® Scatter

By default, these plot types plot the data stored in ZD AT. See chapter 4,

“Plotting graphs”, for details on how to plot statistical data.

Inferential statistics

The inferential statistics capabilities of the HP 49G 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 intentais for the following quantities:

® mean

® proportion

® difference between two means

® difference between two proportions

The calculator contains online help for each test. You access the online

help by pressing HELP on the test input form.

Example data

When you first access an input fonn for an inferential statistics test, by

default the input fonn 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 online help provides a description of what the

example data represents.

Plotting statistics

Using statistics

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Hp 49g Graphing Calculator Manual de usuario Pagina 175