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Determine the degrees of freedom for t-test.

A medical researcher is interested in whether patients' left arms or right arms are longer. If 14 patients participate in this study (so that n left arms and n right arms are measured), how various degrees of freedom must the researcher use in her t-test critical value assuming that the variances are equal?
a.13
b.27
c.14
d.26

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922065

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