Conditions for Z-Tests and T-Tests Tutorial

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Video Chapters

(00:00 - 00:17) Definition of z-Test Conditions

(00:18 - 01:55) List of z-Test Conditions

(01:56 - 02:28) Discussion of t-Test Conditions

(02:29 - 04:40) Example #1

(04:41 - 06:53) Example #2

Terms to Know

t-test conditions: The data were collected in a random way, each observation must be independent of the others, and the sampling distribution must be normal or approximately normal
z-test conditions: The data were collected in a random way, each observation must be independent of the others, the sampling distribution must be normal or approximately normal, and the population standard deviation must be known

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Conditions for Z-Tests and T-Tests

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