The sampling distribution of is approximated by a A)normal distribution B)t-distribution with n₁ + n₂ degrees of freedom C)t-distribution with n₁ + n₂ - 1 degrees of freedom D)t-distribution with n₁ + n₂ + 2 degrees of freedom

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According to the central limit theorem, the sampling distribution of means tends to be normal regardless of the shape of the original population as long as the sample size is sufficiently large (n > 30). Therefore, the sampling distribution of 11ea86e1_d79b_d960_a30f_2bfe88a36863_TB2162_11, which is a sample mean, is approximated by a normal distribution.

The Sampling Distribution of Is Approximated by a