Chi Square Test

Question 1

What is the general formula of the Chi Square Test?

Answer 1

x^2=∑(O−E)^2/E

Question 2

What does O stand for in the Chi Square Test formula?

Answer 2

Observed data in each category

Question 3

What does E stand for in the Chi Square Test formula?

Answer 3

Expected data in each category based on the experimenter’s hypothesis

Question 4

What does ∑ stand for in the Chi Square Test formula?

Answer 4

Sum of the calculations for each category

Question 5

The calculated chi square value can be used to obtain these from a chi square table

Answer 5

Probabilities (P values)

Question 6

Do low chi square values indicate high or low probability that observed deviations could be due to random chance alone?

Answer 6

High probability

Question 7

Do high chi square values indicate high or low probability that observed deviations are due to random chance alone?

Answer 7

Low probability

Question 8

If a chi square test indicates a low probability that observed deviations are due to random chance alone, is the null hypothesis rejected?

Answer 8

Yes

Question 9

If a chi square test indicates a high probability that observed deviations are due to random chance alone, is the null hypothesis rejected?

Answer 9

No