1. The null hypothesis and the alternative hypothesis are as follows:

H₀: The frequencies are equal.

H₁: The frequencies are not equal.

Category	f0
A	10
B	20
C	30

a) State the decision rule, using the 0.05 significance level. Appendix B.6. (Round final answer to 3 decimal places)

Reject H₀ if X² > -------

b) Calculate the value of chi -square. ( Round final answer to 3 decimal places)

Chi- square value --------