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4 Tutorials that teach Conditions for Z-Tests and T-Tests
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Conditions for Z-Tests and T-Tests

Conditions for Z-Tests and T-Tests

Author: Ryan Backman
Description:

This lesson will explain the conditions that need to be met for a z-test or t-test.

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Tutorial
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