Inference app 105
10.Specify a 90%
confidence interval in the C field.
\\\to move to
the C field
0.9 E
Display results
numerically
11.Display the confidence interval in the Numeric view.
Display results
graphically
12.Display the confidence interval in the Plot view.
P
You can see that the
mean is contained within the 90% confidence
interval (CI) of 0.3469814 to 0.8370186.
Hypothesis tests
You use hypothesis tests to test the validity of hypotheses
that relate to the statistical parameters of one or two
populations. The tests are based on statistics of samples
of the populations.
The HP 39gII hypothesis tests use the Normal
Z-distribution or Student’s t-distribution to calculate
probabilities.
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