In testing the difference between two independent population means, if the assumption is of unequal variances, the critical value of the t statistic is obtained by calculating the ________. A) degrees of freedom B) sum of the two sample sizes (n₁ + n₂) C) p-value D) pooled variance

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As the degrees of freedom increase, then the curve starts to approximate the normal distribution.

In Testing the Difference Between Two Independent Population Means, If