Chi Squared

Question 1

What is the equation?

Answer 1

Sum of (o-e)2/e

Question 2

How do you calculate the expected frequency?

Answer 2

row total x column total /overal total

Question 3

How do you calculate the degrees of freedom?

Answer 3

(rows - 1) x (columns - 1)

Question 4

The observed value must be higher or lower than the critical to be significant?

Answer 4

Higher

Question 5

What are the four steps to carry out for each cell?

Answer 5

1 - calculate expected frequency
2 - Subtract expected frequency from observed value
3 - square this difference
4 - divide by expected value