HP Prime Graphing Wireless Calculator - Manual (Page 73)

Inference app 69
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Inference app
The Inference app calculates hypothesis tests, confidence
intervals, and chi-square tests, in addition to both tests
and confidence 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 find confidence intervals for the following
quantities:
• mean
• proportion
• difference between two means
• difference between two proportions
You can also perform goodness of fit tests and tests on
two-way tables based on the chi-square distribution.
Finally, you can perform calculations based on inference
for linear regression:
• linear t-test
• confidence interval for slope
• confidence interval for the intercept
• confidence interval for mean response
• prediction interval for a future response
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.