chi square

Question 1

level of data and experimental design

Answer 1

nominal data and independent measure design

Question 2

step 1 of chi square

Answer 2

add the row and column separately together to get the total of each. this is the observed value

Question 3

step 2 of chi square

Answer 3

with the marked column and row being a, b, c, d, etc we need to calculate the expected value. to do this., we need to take the total value and multiply it by each value in a, b, c and d etc

Question 4

step 3 of chi square

Answer 4

now we should have the observed values and expected values. now we need to subtract the matched observed value from the expected value (o-e)

Question 5

step 4 of chi square

Answer 5

square each number you get from step 3 (o-e squared)

Question 6

step 5 of chi square

Answer 6

divide each of the numbers found in step 4, by the numbers matched you found in step 2. this should be the expected value. so o-e squared divide by e

Question 7

degrees of freedom

Answer 7

number of rows-1 x number of columns-1

Question 8

critical value table

Answer 8

look from the degree of freedom calculated and look at 0.05 on the critical value table. for example for 1 degree of freedom, it should be 3.84

Question 9

the calculated value should be _______ the critical value

Answer 9

equal to or higher than