Discuss the below:
Q: Saint Paul's Hospital commissioned an independent study to determine if there was a difference between the quality of care provided by hospital-trained nurses and tertiary-trained nurses. Two hundred nurses were rated as either providing Superior Service (S) or Adequate Service (A)
Superior (S) Adequate (A)
Hospital-trained (H) 48 12
Tertiary-trained (T) 76 64
The results are as follows:Are the events H and S independent? Justify your answer mathematically.