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Suppose you read the following in a journal

/in /by

Question

Suppose you read the following in a journal: “The group means did not differ significantly, t(30.1) = 1.68, p <

.05, two-tailed.” You notice that the ns in the groups were n1 = 40 and n2 = 55.

a.What degrees of freedom would you normally expect a t test to have when n1 = 40 and n2 = 55?

b.How do you explain why the degrees of freedom reported here differ from the value you just calculated

 
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