Question: In testing hypotheses about a single mean with unknown variance and small n, wh of the following formulas are used to calculate the test statistic?

In testing hypotheses about a single mean with unknown variance and

In testing hypotheses about a single mean with unknown variance and small n, wh of the following formulas are used to calculate the test statistic? a. b. t= D S t=(x- H)/ 3 d. i=1 e. none of the above

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