t-test or t test? How do you spell it?

I’ll make this a quick post today, but I come across this issue so often I figured I would post it for everyone’s benefit. You might have wondered how you should spell this statistical test. Let’s do a little multiple choice. ¬†Which of the following spellings is correct?

A. t test

B. t-test

C. t test

D. t-test

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