HP 40G manual One-Proportion Z-Test

Results	The results are:
	Result	Description
	Test Z	Z–Test statistic
	Prob	Probability associated with the
		Z–Test statistic.
	Critical Z	Boundary value of Z associated
		with the α level that you
		supplied.

One–Proportion Z–Test

Menu name	Z–Test: 1P
	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 proportion of successes in the two populations is
	equal. H0 π = π0
	You select one of the following alternative hypotheses against
	which to test the null hypothesis:
		H1 :π < π0
		H1 :π > π0
		H1 :π ≠ π0
Inputs	The inputs are:
	Field name	Definition
	x	Number of successes in the sample.
	n	Sample size.
	π￿	Population proportion of successes.
	α	Significance level.

Inference aplet 9-11