Interview question: What is a z test?

Tracyrenee
4 min readMar 24, 2024

In my last post I discussed the t-test, which is a statistical test that can be used on small datasets, and that blog post can be read here:- https://medium.com/@tracyrenee61/interview-question-what-is-a-t-test-c34261aa7a99

In this post I intend to discuss the z-test, which is used to calculate the test statistic for longer datasets. The z-test is a statistical test that is used to determine…

--

--

Tracyrenee

I have five decades experience in the world of work, being in fast food, the military, business, non-profits, and the healthcare sector.