survsamp.diff: A function for surveys using simple random sampling when...

In carrollrm/survsamp: Estimation and Sample Size Determination for Elementary Survey Sampling Methods

Description

This function allows you to make estimation or sample size determinations for the difference between two groups with surveys using simple random sampling.

Usage

survsamp.diff(y1 = NULL, y2 = NULL, N1 = NULL, N2 = NULL,
  sig2.1 = NULL, sig2.2 = NULL, p1 = NULL, p2 = NULL,
  estimate = "mean", alpha = 0.05, prop.dpnt = FALSE)

Arguments

y1	The data vector from population 1 to be used for estimation.
y2	The data vector from population 2 to be used for estimation.
N1	The population size for population 1. Required.
N2	The population size for population 2. Required.
sig2.1	The population 1 variance.
sig2.2	The population 2 variance.
p1	The population 1 proportion.
p2	The population 2 proportion.
estimate	Indicate the desired statistic to be estimated. Options include: mean, total, and proportion.
alpha	Significance level.
prop.dpnt	Logical statement indicating if the two proportions are dependent.

Examples

survsamp.diff(y1=rnorm(25,5,1),y2=rnorm(25,10,2),
     N1=46,N2=54,sig2.1=1,sig2.2=2,
     estimate="mean")
survsamp.diff(y1=rbinom(25,1,.75),y2=rbinom(25,1,.5),
     N1=46,N2=54,
     estimate="proportion",prop.dpnt=FALSE)

carrollrm/survsamp documentation built on April 28, 2020, 4:04 a.m.