If an independent-groups t test has seven participants in each group, then the degrees of freedom...
If an independent-groups t test has seven participants in each group, then the degrees of freedom are
a) 12
b) 7
c) 14
d) 6
If the null hypothesis is true, then the t test should be close to
a) ±1.96
b) ±3.00
c) 0.00
d) ±1.65
Homework Answers
Answer
(1) degree of freedom = n1 +n2 -2
we have n1 = n2 = 7
so, degree of freedom = 7+7-2. =12
option A
(2) null hypothesis Will always failed to reject the t statistic is close to the mean, i.e. when the t statistic is close to center value 0
therefore, option C is correct
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