If the sampling distribution of ₁ - ₂ cannot be assumed normal, we ________. A) are unable to compute a confidence interval B) are still able to use the z distribution to compute a confidence interval C) must use the t_df distribution with n₁ + n₂ - 2 degrees of freedom to compute a confidence interval D) must use the t_dfdistribution and calculate the degrees of freedom using n₁, n₂, s₁, and s₂ to compute a confidence interval

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The Answer of If the sampling distribution of ₁ - ₂ cannot be assumed normal, we ________. A) are unable to compute a confidence interval B) are still able to use the z distribution to compute a confidence interval C) must use the t_df distribution with n₁ + n₂ - 2 degrees of freedom to compute a confidence interval D) must use the t_dfdistribution and calculate the degrees of freedom using n₁, n₂, s₁, and s₂ to compute a confidence interval

If the Sampling Distribution of 1 - 2

If the Sampling Distribution of ₁ - ₂