Chapter 6: Sampling Distribution

Question 1

Mean of the sample mean

Answer 1

the number about which means computed from the sample of same size center.

Question 2

standard deviation of the sample mean

Answer 2

a measure of variability of means, computed from samples of the same size

Question 3

sampling distribution

Answer 3

the probability distribution of the sample statistic when the statistic is a random variable

Question 4

CLT

Answer 4

for random samples of size n>30, the sample mean is approximately normally distributed with mean x bar and SD sigma x bar.