Mean Difference Hypothesis Test in R Survey Package

Question

Please, using the Survey package, how to make a hypothesis test of mean difference? i.e. if the sample mean of 2003 is the same in 2008 for a certain variable. I’m working with PNAD data

Answer 1

The function you will need to use is called svyttest.

In the examples, when you use help(svytest) he does it this way:

data(api)
dclus2<-svydesign(id=~dnum+snum, fpc=~fpc1+fpc2, data=apiclus2)
svyttest(enroll~comp.imp, dclus2)

In this example he compares the average number of students enrolled in American schools who have reached a "comparable improvement measure".

In your case you must have an object created by the function svydesign right? So to test just use the function svyttestas follows:

svyttest(variavel_que_vc_quer_comparar~ano_como_fator, objeto_svydesign)

In any case, it would be interesting if you provided a small sample of your data to anyone trying to answer, to be able to see if it is working for your problem.