HP 49g Graphing Calculator - Manual (Page 179)

Menu name: Z-Test: 1 P
On the basis of statistics from a single sample, measures the strength of
the evidence for a selected hypothesis against the null hypothesis. The
null hypothesis is that the proportion of successes in the population
equals a specified value, K q
You select one of the following alternative hypotheses against which to
test the null hypothesis:
Hi'.n < K q
> TCn
One-Proportion Z-Test
Inputs
K
q
X
n
a
Results
TestP
TestZ
Prob
Critical Z
Ily-n K q
Population proportion of successes.
Number of successes in the sample.
Sample size.
Significance level.
Proportion of successes in the sample.
Z-test statistic.
Probability associated with the Z-test statistic.
Boimdary value of Z associated with the a level that you
supplied.
Using statistics Page 9-11