When sample size (n)is larger than ____,the t-distribution and Z-distribution are almost identical.
A)10
B)20
C)25
D)30

Question

Quizplus · Accepted Answer

According to Central Limit Theorem, as the sample size increases beyond 30, the sample mean will tend to follow a normal distribution. Therefore, the t-distribution with infinite degrees of freedom will be almost identical to the standard normal distribution, which is represented by the Z-distribution.

When Sample Size (N)is Larger Than ____,The T-Distribution and Z-Distribution