If two independent large samples are taken from two populations, the sampling distribution of the difference between the two sample means
A)can be approximated by a Poisson distribution
B)will have a variance of one
C)can be approximated by a normal distribution
D)will have a mean of one

Question

Quizplus · Accepted Answer

The central limit theorem states that for large enough samples (typically n > 30), the sampling distribution of the difference between two sample means can be approximated by a normal distribution. Therefore, choice C is correct. The other options (A, B, and D) are incorrect.

If Two Independent Large Samples Are Taken from Two Populations