The main difference between a Z score and a t score is that

Hog95

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9 years ago

The main difference between a Z score and a t score is that

The main difference between a Z score and a t score is that
A)   T scores are used when a study is analyzed with a one-tailed test.
B)   T scores are used when the population variance is unknown.
C)   T scores are used only when the sample size is greater than 30.
D)   T scores are used only when inferences are made about other samples.

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Hog95 Author

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9 years ago

Thank you so much for the reply. Your answer makes a lot of sense.

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