test.prop1 {statpsych}

Hypothesis test for a single proportion

Description

Computes a continuity-corrected z test for a single proportion in a 1-group design.

Usage

test.prop1(f, n, h)

Arguments

f

number of participants who have the attribute

n

sample size

h

population proportion under null hypothesis

Value

Returns a 1-row matrix. The columns are:

• Estimate - ML estimate of proportion

• z - z test statistic

• p - p-value

References

Snedecor GW, Cochran WG (1989). Statistical Methods, 8th edition. ISU University Pres, Ames, Iowa.

Examples

test.prop1(9, 20, .2)

# Should return:
# Estimate        z          p
#     0.45 2.515576 0.01188379