
13 Inference app
The Inference app calculates hypothesis tests, condence intervals, and chi-square tests, in addition to both
tests and condence intervals based on inference for linear regression. 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, and so on).
Based on statistics from one or two samples, you can test hypotheses and nd condence intervals for the
following quantities:
●
Mean
●
Proportion
●
Dierence between two means
●
Dierence between two proportions
You can perform goodness of t tests and tests on two-way tables based on the chi-square distribution. You
can also perform the following calculations based on inference for linear regression:
●
Linear t-test
●
Condence interval for slope
●
Condence interval for the intercept
●
Condence interval for mean response
●
Prediction interval for a future response
You can also perform a one-way analysis of variance (ANOVA) on lists of data.
Sample data
For many of the calculations, the Numeric view of the Inference app comes with sample data (which you can
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
Use the following sections to conduct a Z-Test on one mean using the sample data.
Sample data 261
Komentarze do niniejszej Instrukcji