Estimation and significance test + p values Flashcards
1
Q
How do you calculate standard error of a sample
A
SE = SD/sqrt(n)
2
Q
How do you work out confidence intervals for a sample?
A
CI = mean +- 1.96(standard error)
3
Q
How do you work out standard error of a proportion?
A
sqrt( p( (1-p)/n )
4
Q
How do you work out confidence intervals for a proportion?
A
CI = proportion +- 1.96(standard error)
