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 the sample mean is approximately normal as per the Central Limit Theorem, given that the sample size is sufficiently large (n ≥ 30) or the population distribution is normal. Hence, the best choice is A, which is a normal distribution. The other choices are incorrect.

The Sampling Distribution of Is Approximated by a