When sample sizes exceed _____,the t and Z distributions are virtually identical.
A) 120
B) 300
C) 500
D) 1000
E) the t and Z distributions will never be identical

Question

Quizplus · Accepted Answer

When sample sizes exceed 120, the t and Z distributions are virtually identical, as the central limit theorem suggests that as sample sizes increase, the sampling distribution of the sample mean becomes approximately normal regardless of the shape of the population distribution.

When Sample Sizes Exceed _____,The T and Z Distributions Are