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Using two independent samples, two population means are compared to determine if a difference exists. The number in the first sample is fifteen and the number in the second sample is twelve. How many degrees of freedom are associated with the critical value

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umerpharmacist97

Answer:

Degrees of freedom=25

Explanation:

The formula for degree of freedom for two population sample is :

                  Degree of freedom=n1 + n2 - 2

N1= first sample

n2=second sample

According to the question, n1=15 and n2=12

So,

      Degree of freedom= 15 + 12 - 2⇒ 25

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