What is Walmart’s Beta over this period?

Using the CAPM model, what is Chiquita’s required rate of return on equity (cost of equity)?

Company	Walmart	Chiquita	Whole Foods
Average Daily Return	0.057%	0.034%	0.038%
Standard Deviation of Daily Returns	0.92%	2.95%	1.90%
Correlation with the Market	0.51	0.48	0.56

Average Daily Return of the Market	0.048%
Standard Deviation of the Market Returns	0.99%
Annual Risk Free Rate	2%
Expected Annual Market Return	9%