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    Choosing between a z-test and a t-test.

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    Under what circumstances would you conduct a z-test? When would you preform a t-test?

    © BrainMass Inc. brainmass.com June 3, 2020, 9:29 pm ad1c9bdddf

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    A z-score is a statistical procedure that enables us to assign one numerical value to a score so that it may be compared on a standardized scale. With a Z-score value we can make predictions and determine corresponding ...

    Solution Summary

    What are the similartities between the shape of the z-test and the t-test? What would prevent you from using a z-score?