# Z-Tests: Should we even bother?

**OutLie..R**, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Should statistical teachers continue to teach z-tests?

vote: ** save z-test**, or

*stop z-test*Looking at textbooks, articles and general research I cannot remember the last time I saw someone use a z-test in a study. I have seen many a t-test, ANOVA, chi^2, and others, but rarely a z-test.

The z-test has the burden of needing the population mean and population standard deviation. In the world of statistics getting a true population is like finding the holy grail, the stuff legends are made of, like the perfect dataset.

I have some arguments for and against teaching z-test, please add your comments and arguments for or against, or vote to ** save z-test**, or

*stop z-test***Save the Z-Test **

This is how it has been done for decades, why change a good thing

When there is a dataset with a population, a z-test is the best tool

Get to look up cool numbers in an appendix of your favorite stats book (ah memories)

Z-tests are a stepping stone to t-tests and hypothesis testing, foundational to the rest of statistics

Great problems for textbooks

**Stop the Z-Test**

This is how it has been done for decades, it is due for a change

How often does a researcher ever really get a true population?

Computer should be able to do all of the looking up

Z-test can be skipped moving straight to t-tests

When was the last time you actually did a z-test with a real dataset?

Please add additional arguments or just vote to ** save z-test**, or

**it. A tally will be added up and presented next week.**

*stop z-test***leave a comment**for the author, please follow the link and comment on their blog:

**OutLie..R**.

R-bloggers.com offers

**daily e-mail updates**about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.