Sampling Distribution, Standard Error & Z-Test Flashcards
Sampling distribution
A distribution of sample means where each sample is the same size (N)
Use of sampling distributions
Used for comparative purposes for z-tests, a sample mean is compared with the sampling distribution to assess the likelihood that the sample is part of the sampling distribution.
Standard Error of the Mean
The standard deviation of a sampling distribution, determined by dividing standard deviation by the square root of N
Use of Standard Error of the Mean
Used in the calculation of a z
Z-Test
An indication of the how many standard deviations the sample mean is from the mean, of the sampling distribution
Use of the Z-Test
An inferential test that compares a sample mean with the sampling distribution to determine the likelihood that the sample is part of the sampling distribution.