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If we compared two groups of 15 on a math achievement test, what would be the...

If we compared two groups of 15 on a math achievement test, what would be the value of t that would have to be exceeded in order for the difference to be significant (p<.05, two –tailed test )

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Answer #1

From the given information,

Degrees of freedom= 30-2 = 28

Alpha= 0.05

Hence by using calculator,

The required correct answer is,

Value of t= 2.0484

Thank you.

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