Samples of size n=600 are taken from a telephone survey and the mean age is taken from each sample. What is the distribution of the sample means?

A. not enough infomation

B. skewed to left

C. normal

D. skewed to right

C. normal

Step-by-step explanation:

given that samples of size n=600 are taken from a telephone survey and the mean age is taken from each sample.

Here we find that sufficiently large sample sizes are taken and can be assumed random as taken as per survey

Recall central limit theorem

The sample mean for large samples randomly drawn will follow normal distribution irrespective of the original distribution of the variable

Hence here we get normal distribution

Option c is right

C. normal