test.prop: Hypothesis test for a proportion

In statpsych: Statistical Methods for Psychologists

Hypothesis test for a proportion

Description

Computes a continuity-corrected z-test for a population proportion in a 1-group design. A confidence interval for a population proportion is a recommended supplement to the z-test (see ci.prop).

For more details, see Section 1.7 of Bonett (2021, Volume 3)

Usage

test.prop(f, n, h)

Arguments

f	number of participants who have the attribute
n	sample size
h	null hypothesis value of proportion

Value

Returns a 1-row matrix. The columns are:

• Estimate - ML estimate of proportion

• z - z test statistic

• p - two-sided p-value

References

\insertRef

Snedecor1980statpsych

\insertRef

Bonett2021statpsych

Examples

test.prop(76, 100, .6)

# Should return:
# Estimate      z       p
#     0.76 3.1639 0.00156

statpsych documentation built on Jan. 13, 2026, 1:07 a.m.