Chapter 7 - Probability and Samples

Question 1

Distribution of Sample Means

Answer 1

The set of M’s for all the possible random samples for a specific sample size (n) that can be obtained from a specific population

Question 2

Central Limit Theorem

Answer 2

The parameters of the distribution of sample means are 1.) Shape, 2.) Central Tendency, and 3.) Variability

Question 3

Standard Error

Answer 3

How much error to expect if using a sample mean to represent a population mean

Question 4

Sampling Distribution

Answer 4

A distribution of statistics obtained by selecting all the

possible samples of a specific size from a population

Question 5

Expected Value of M

Answer 5

The mean of the distribution of sample means is equal to the mean of the population of scores.

Question 6

Standard Error of M

Answer 6

A measure of how much distance is expected on average between the sample mean and the population mean.

Question 7

Law of Large Numbers

Answer 7

The larger the sample size (n), the more probable it is that the sample mean will be close to the population mean