The equal-variances test statistic of $\mu _ { 1 } - \mu _ { 2 }$ is Student t-distributed with n₁ + n₂ -2 degrees of freedom provided that the two populations are ____________________.

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The Answer of The equal-variances test statistic of $\mu _ { 1 } - \mu _ { 2 }$ is Student t-distributed with n₁ + n₂ -2 degrees of freedom provided that the two populations are ____________________.

The Equal-Variances Test Statistic Of μ1−μ2\mu _ { 1 } - \mu _ { 2 }μ1​−μ2​

The Equal-Variances Test Statistic Of $\mu _ { 1 } - \mu _ { 2 }$