Consider the following data on 500 randomly chosen individuals: A B AB O ...

Consider the following data on 500 randomly chosen individuals:
A B AB O
Rh level
Rh+ 176 28 22 198
Rh- 30 12 4 30
 

Compute the expected frequencies within each cell, assuming that Rh level and blood type are independent.
Conduct a chi square independent test of blood type and Rh level at a 0.05 level of significance.