standard error

Question 1

SEM=

Answer 1

SEM= SD/squareroot of n

Question 2

SE uses..

Answer 2

means of the sample to calc means of the population

Question 3

as SD increases

Answer 3

so does SEM- the more variability, the more uncertainty there is

Question 4

SEM decreases with

Answer 4

increasing sample size–> the larger the group, the less role chance plays in the results

Question 5

why do we use standard error

Answer 5

because it takes into account the sample size as well as the deviation. for example if the mean height of men was found to be 178 and the SD was 7, this tells us nothing about the reliability of the results. e.g.what if only two heights had been recorded? In this way the larger the sample the less impact extreme heights would have

Question 6

therefore SEM is the SD of..

Answer 6

therefore SEM is the SD of the answers we would get if we repeated per study over and over again