For an independent samples t test with N 1 15, N 2 13, X 1 30, X 2 27, SS 1 780, and SS 2 520, the t obt value is A 0 42 B 1 12 C 0 80 D 1 55

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For an independent samples t test with N 1 = 15, N 2 = 13, X 1 = 30, X 2 = 27, SS 1

For an independent samplesttest withN₁= 15,N₂= 13,X₁= 30,X₂= 27,SS₁= 780, andSS₂= 520, thet_obtvalue is ___________.

A. 0.42

B. 1.12

C. 0.80

D. 1.55

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