HP Prime Graphing Wireless Calculator - Manual (Page 92)

88 Inference app
Inputs The inputs are:
Results The results are:
Chi-square tests
An HP Prime calculator can perform tests on categorical
data based on the chi-square distribution. Specifically, HP
Prime calculators support both goodness of fit tests and
tests on two-way tables.
Goodness of fit test
Menu name Goodness of Fit
This option uses the chi-square distribution to test the
goodness of fit of categorical data on observed counts
against either expected probabilities or expected counts.
In the Symbolic view, make your selection in the
Expected box: choose either Probability (the
default) or Count.
Result Definition
Sample 1 mean
Sample 2 mean
s
1
Sample 1 standard deviation
s
2
Sample 2 standard deviation
n
1
Sample 1 size
n
2
Sample 2 size
C Confidence level
Pooled Whether or not to pool the samples
based on their standard deviations
x
1
x
2
Result Description
C Confidence level
DF Degrees of freedom
Critical T Critical values for T
Lower Lower bound for μ
Upper Upper bound for μ
Δ
Δ