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

Question

Quizplus · Accepted Answer

The sampling distribution of a mean is always approximately normal if the sample size is sufficiently large (n > 30) regardless of the underlying population distribution. Therefore, the best choice is normal distribution.

The Sampling Distribution of