I need help understanding this homework problem, thank you.

	Elite	Non-elite	Never Played	TOTAL
Arthritis	10	9	24	43
No Arthritis	61	206	548	815
TOTAL	71	215	572	858

1. Give the appropriate mathematic null and alternative hypotheses researchers would use to see if soccer playing had an impact on arthritis.

1. Calculate the expected values you'd anticipate for each cell in the contingency table above if the null were true.

1. Calculate the appropriate test statistic.

1. Calculate the appropriate degrees of freedom.

1. Calculate the appropriate p-value.

1. Write a conclusive statement for this analysis ifa = 0.05.