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.
Level of measurement in SPSS - Critical thinking, Data analytics
Difference Between t-test and z-test (with Comparison Chart) - Key
Understanding the Difference Between t-test and z-test
Difference Between t-test and z-test (with Comparison Chart) - Key
Difference Between t-test and z-test (with Comparison Chart) - Key
Q#23: Difference between t-test and z-test
Difference Between Standard Deviation and Standard Error
Difference Between t-test and z-test (with Comparison Chart) - Key
Difference Between t-test and z-test (with Comparison Chart) - Key
Difference Between t-test and z-test (with Comparison Chart) - Key