Chi Squared Flashcards
1
Q
What is the equation?
A
Sum of (o-e)2/e
2
Q
How do you calculate the expected frequency?
A
row total x column total /overal total
3
Q
How do you calculate the degrees of freedom?
A
(rows - 1) x (columns - 1)
4
Q
The observed value must be higher or lower than the critical to be significant?
A
Higher
5
Q
What are the four steps to carry out for each cell?
A
1 - calculate expected frequency
2 - Subtract expected frequency from observed value
3 - square this difference
4 - divide by expected value
