z.test: Simplified Z Tests

In vannstats: Simplified Statistical Procedures for Social Sciences

Simplified Z Tests

Description

This function runs a one-sample Z-test, comparing the proportion in your sample to the proportion in the population.

Usage

z.test(df, var1, var2, prop)

Arguments

df	data frame to read in.
var1	variable with the total number of events, by sub-unit (e.g. cities within a county).
var2	variable with number of events for a specific group.
prop	proportion to compare to (between 0 and 1).

Value

This function returns the Z score and p-value for the z-test.

Examples

data <- UCR2015[UCR2015$state=="California",]
data$total_part2 <- data$burglary + data$larceny + data$mv_theft + data$arson

z.test(data,total_part2,burglary,.25)

vannstats documentation built on April 4, 2025, 1:37 a.m.