week 2 reading, chapter 7 - sampling error Flashcards
1
Q
define sampling error
A
variation which arises whenever we observe a sample instead of the whole population
also referred to as sampling variation
2
Q
define sampling distribution
A
the type of distribution we expect a particular estimate to follow
3
Q
define sample size
A
often referred to as n
the number of observations in a sample
4
Q
how can we reduce sampling error
A
increase the sample size
5
Q
define standard error
A
the standard error of an estimate is the standard deviation of its sampling distribution
- it is a standard deviation - so is the measure of the spread or dispersion of a distribution
