Inputs, One-sample t-test – HP 39g Graphing Calculator User Manual
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Results
The results are:
Result
Description
Test PI-P2
Difference between the
proportions of successes in the
two samples.
Test Z
Z-Test statistic.
Prob
Probability associated with the
Z-Test statistic.
Critical Z
Boundary values of Z associated
with the a level that you supplied.
One-Sample T-Test
Menu name
T-Test: 1 (i
The One-sample T-Test is used when the population standard
deviation is not known. On the basis of statistics from a single
sample, this test measures the strength of the evidence for a
selected hypothesis against the null hypothesis. The null
hypothesis is that the sample mean has some assumed value,
Ho:p = Po
You select one of the following alternative hypotheses against
which to test the null hypothesis:)
//] :p, H
q
Inputs
The inputs are:
Field name
Definition
X
Sample mean.
Sx
Sample standard deviation.
n
Sample size.
pO
Hypothetical population mean.
a
Significance level.
Inference aplet
9-13