C3. Suppose 300 persons are selected at random from a large population; and that each person in the sample is classified according to whether his/her blood type is O, A, B, or AB, and also according to whether his/her blood type is Rh positive or Rh negative. The observed table is: Observed counts O A B AB Rh 82 89 54 19 Rh - 13 27 7 9 Test the hypothesis that the two classifications of blood types are independent. Null hypothesis: RH designation and blood type are independent Alternative hypothesis: RH designation and blood type are NOT independent Can you show the calculation of the chi squared test statistic