Difference Between t-test and z-test (with Comparison Chart) - Key Differences
![Difference Between t-test and z-test (with Comparison Chart) - Key Differences](https://keydifferences.com/wp-content/uploads/2018/03/t-test-vs-z-test.jpg)
The main difference between t-test and z-test is that t-test is appropriate when the size of the sample is not more than 30 units. However, if it is more than 30 units, z-test must be performed.
![](https://i.pinimg.com/736x/5c/5c/8c/5c5c8ce974cbfd335f8819c46e9ef20d.jpg)
Level of measurement in SPSS - Critical thinking, Data analytics
![](https://keydifferences.com/wp-content/uploads/2016/05/parametric-vs-nonparametric-test-thumbnail-180x75.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://i.pinimg.com/originals/48/f6/8e/48f68e3b28189e1ea979ce66d2fafeaa.gif)
Difference Between Standard Deviation and Standard Error
![](https://keydifferences.com/wp-content/uploads/2018/03/t-test-vs-z-test.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
Q#23: Difference between t-test and z-test
![](https://keydifferences.com/wp-content/uploads/2017/01/t-test-vs-f-test-thumbnail-180x75.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://keydifferences.com/wp-content/uploads/2018/03/t-test-vs-z-test1.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://keydifferences.com/wp-content/uploads/2017/01/one-tailed-vs-two-tailed-test-thumbnail-180x75.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://keydifferences.com/wp-content/uploads/2016/12/standard-deviation-vs-error-thumbnail-180x75.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://i.pinimg.com/600x315/b6/0c/6a/b60c6aa1eaee36d73f6c6c953beaa996.jpg)
Understanding the Difference Between t-test and z-test
![](https://keydifferences.com/wp-content/uploads/2016/05/anova-vs-t-test-thumbnail-180x75.jpg)
Difference Between t-test and z-test (with Comparison Chart) - Key
![](https://miro.medium.com/v2/resize:fit:1358/0*dL-IoF0RBoh-hNRl.jpg)
Q#23: Difference between t-test and z-test