Chapter 5

The mean of all the sample means of the sampling distribution of the mean is symbolized as

(mu sub x-bar)

The standard deviation of the sampling distribution of the mean gets smaller as the size of the sample size

increases

The standard deviation of all the sample means of the sampling distribution of the mean is symbolized as

σx̅ (sigma sub x-bar)

If the sampling size increased, then the standard deviation if the sampling distribution if the proportion will

decrease

As a sample size increases the standard error if the mean

decreases

When working with sampling distribution of the mean, the formula used for z score is

z of x=

the notation for the mean of the sampling distribution of the proportion is

μp̂

The formula for the mean of the sampling distribution of proportion is

μp̂=p

a ______ is a fraction, ratio or percentage that indicates the part of a population or sample that possesses a particular characteristic.

proportion

The formula for the standard error of the proportion is

p̂-p

The standard deviation of the sampling distribution of the mean is called the ___________ ___________ of the mean

standard error

The standard error of the mean is the _________ _________ of all the sample means of size n of the sampling distribution , denoted by ________. the standards error of the mean is equal to the standard deviation of the population, σ , divided by the square root of the ________ _______ in symbols, this is expressed as:

Standard deviation, σx̅ , sample size n, and

The mean of the sampling distribution of the mean, denoted by _______ and is equal to the mean of __________ from which the samples were selected in symbols, this is expressed as __________

μx, population,and