Psychology5/Statistics- Chapter 5 Quiz
The distribution of means is sometimes also called...
the sampling distribution
The standard deviation of a distribution of means is...
the square root of the variance of the distribution of means
Dividing the variance of the population of individuals by the number of individuals in each sample yields...
the variance of the distribution of means
As the number of people in a sample gets larger, the distribution of means
begins to look more and more like the normal curve
The standard deviation of a distribution of means is sometimes called "the standard error of the mean," or the "standard error," because...
it represents the degree to which particular sample means are "in error" as estimates of the mean of the population of individual scores.
In principal, a distribution of means can be formed by...
randomly taking a very large number of samples from a population, each of the same size, and making a distribution of their means.
In hypothesis testing, after figuring the Z score for the sample's mean, the next step would be to compare this Z score to...
the distribution of means that would be found if the null hypothesis were true
In general, the shape of a distribution of means tends to be...
unimodal and symmetrical
If a population is not normally distributed, the shape of a distribution of means...
will be normal when the sample size is more than 30.
The difference between creating a Z score from a single score and creating one from a sample mean is that...
you use the mean and standard deviation from the distribution of means
